You should always keep telling yourself 'Is this everything I can do this round?' at the end of every single round. This often times helps you remember if you do need to do anything which is a good habit to get into if you insist on keeping your round as low as possible and making the Easter Eggs rather trivial.
For example, let's say you have enough points to open a few doors and start a new Easter Egg step, but you only open the doors. Reminding yourself of 'is this everything I can do' and genuinely taking the time to remember or look at a guide can tell you that you need to start the step and potentially stop you from finishing the Easter Egg too high for comfort. (Of course you don't need to do this but if you have difficulty surviving in Zombies, it's a decent precaution to take). Or as another example, if you need to get to a certain area before a certain round because of a boss zombie, like the Megaton for example, use this ideal to make sure you do.

It would be preferable if you had multiple people to do the Easter Eggs with, even just one other person can be highly beneficial, however, you can do every single one of these Easter Eggs in Solo play. You do not need another person, including Outbreak. Although for Outbreak it is highly advised you get at least one other person due to more versatility with the various field upgrades you have. Pairing Tier 5 Ring of Fire with a Tier 5 Frenzied Guard is unmatched when it comes to damaging the 'Legion.'

When it comes to perks, prioritise the essentials first. To those who don't know, you lose your most recently bought perks when you go down (unless you're playing solo in which case it's always Quick Revive then the most recent). Prioritise getting Juggernog, Stamin-up and Speed Cola as your basic essentials (add Quick Revive to the end for Solo). From then on, if you die with more than double your current perks, half will be lost but you will at the very least keep Juggernog and possibly Stamin-up. I can't get into the full dynamics of how perks work but trust in the following;
- When you go down, you immediately lose half your perks regardless of how many you had.
- As you bleed out, the perks you still have will slowly start to disappear until you are revived, in which you keep them if you are successfully revived.
- The loss order is completely dependent on the order you bought the perks, most recent to first bought (right to left pretty much).
- The more perks you have, the more you will lose.

However if you can survive without Speed Cola, I highly recommend you get Depth Perception instead, providing you have it upgraded to at least Tier 3. This will help you get more salvage overall which can sometimes make the difference between life and death in the boss fight.

(The following is entirely based on Tier 5 abilities, so I would recommend reading and upgrading as to your preference of use before attempting an Easter Egg and blaming me if it goes wrong due to ability 'malfunction'.

As for Field Upgrades, I find Aether Shroud to be the best overall Solo Field Upgrade due to you being able to survive moments where you shouldn't or can't, like being trapped in a corner without the necessary firepower to escape in time. Include that with it's other uses and you have a very versatile get out of jail free card.
Ring of Fire is the best offensive and power based Field Upgrade as it's pretty much only used to speed up the fight and in very rare cases survive a little longer. This being that it provides a massive damage boost that anyone in your team can use, and should use. It is best to coordinate your usage with your team, if you have one, before you place it, so you can all benefit from its effects.
Healing Aura is the best protective Field Upgrade as it pretty much allows your team to be almost invincible while it is in use. Using this just before someone goes down, in my opinion, is the best way to use this, as A) it keeps your teammates perks, B) it allows a brief moment of recovery from a stressful event and C) it doesn't force you to reposition into a less advantageous spot, so you can keep your momentum going.
Finally, Frenzied Guard is the best defensive Field Upgrade as it provides perfect protection for you and your team. For you, it completely restores all armour lost as well as making zombies explode on contact of you, and as for your teammates, it literally slows every zombie on the map to a walking speed. This is invaluable during some boss fights as it makes them trivial. Keep aware that Special and Boss class enemies are not affected by this though.

(The following is again entirely based on Tier 5 abilities, so I would recommend reading and upgrading as to your preference of use before attempting an Easter Egg and blaming me if it goes wrong due to ability 'malfunction'.
There isn't much to say here but I'll put down as much as I can. Napalm Burst and Dead Wire aren't worth it at all. During Easter Eggs, they're still useful but the other 3 Ammo Mods are just superior in versatility and damage, so you're better off getting Cryofreeze, Shatterblast or Brain Rot.

Cryofreeze is, in my opinion, the best for just casual playing leading up to the boss fight. It helps with crowd control and makes it easier for you to land headshots as well as clean up when it procs. Other than that I would recommend using the following others.

Shatter Blast is also a very good crowd control Ammo Mod however, in my experience it usually goes off when I don't want it to hence why I don't recommend it to everyone. It is most useful during the boss fights where points and everything that isn't survivability doesn't matter.

Brain Rot is my favourite and for good reason. It allows you to ease off a little while the turned zombie ravages its own friends for you. It's pretty much just a lazy pick but it also helps distract some zombies, which can sometimes mean being overwhelmed or not and in Easter Eggs, what better way to prevent death is there than to just mitigate every way you can die, no matter how small? Plus it's required in Mauer Der Totens Easter Egg hehe. However I must say that you probably shouldn't get this on a low round, as it can and most likely will kill all the zombies if you're trying to save them in a round.

Operators don't matter, use whoever pleases you the most :)

As for weapons, use what you prefer. If you can add attachments onto it I would highly suggest adding the Mounted Flashlight or the Tiger Team Spotlight if able. These respectively increase common and rare salvage in the game and pair it with Tier 3 Depth Perception, you can look upon the battlefield as if it were a gold mine.

In terms of rarity however, whichever body attachment you use should be dependent on your weapon rarity when you start the game. Due to you most likely only getting Epic rarity as the highest before a boss fight, it's recommended you use the mounted flashlight if you start off as Red or Green rarity. Otherwise if you are in the Blue rarity, use the Tiger Team Spotlight to increase your rare salvage acquisition.

You don't necessarily have to use weapons you're not comfortable with that are shown in this, or other, guides or are labelled as 'highly recommended'. Just use what you feel comfortable using, whether it be a melee weapon, pistol, even special weapon if you're happy enough. Just use something that can get you a decent amount of points and that won't completely hinder you.

I also want to apologise in advance about the quality of the screenshots, I have medium settings and Steam only allows 2MB screenshots.

Sometimes Megatons and hound rounds don't coincide like you want them too, this is completely fine and no reason to restart, it's just luck. If this happens don't be scared since later rounds will spawn Megatons mid round and more frequently so the Decontamination Subject step shouldn't be too troublesome. Also plague hounds spawn mid round on later rounds too so if you need one for the D.I.E Nova 5, you should have no problem. This chance also makes it unpredictable as to what round you will finish on, but generally you should be under 20 on average.

You can also look at the mini map for reference in case it is difficult for you to make out where I am in the screenshots. The area name combined with the position of the mini map and my surroundings should lead you to where you need to be.

Although it's stated in game, may as well point it out quickly to be safe/cover everything. I also wouldn't consider this an Easter Egg step as it's a basic requirement for the map but hey ho it's here.

Turning on power is as simple as reaching the Particle Accelerator room and pushing 3 buttons, they are clearly marked so I won't add a screenshot. Then a Pack-a-Punch silhouette will appear in the centre of the room, interact with it and follow the way point markers to unlock it. However, this can be used to get a piece for the D.I.E Machine Wonder Weapon.

To get the part for the D.I.E Wonder Weapon, follow the path up until the Aether Tunnel. Go to the Crash Site and run over to that sides Aether Tunnel but do no enter it. Beside it will be a small electrical box that you can knife or shoot open, then pick up the Fuse inside. Then go continue down to open Pack-a-Punch.











After power is on, wait until a Megaton spawns and start heading to the Pond. You should see a growth on the side of a tree as you enter the Pond from Crash Site. Get the Megaton to shoot you with its radiation attack (Hand or mouth blast, doesn't matter) and position yourself so as it hits you, it also hits the growth on the tree. The growth should now glow purple and you can kill the Megaton.










Upon killing the Megaton, pick up the key card he drops and make your way to the Weapons Lab. Go over to the computer in the corner of the room, besides the mystery box, and interact with it. Now a remote control device should pop out, pick it up. Then we will finish off the D.I.E Machine in a later step.











Now head over to the Aether Anomaly portal at the far end of the Pond marked on the map and get ready to run. You're going to need to run to 3 different locations and find the Aetherscope part in a random order. These 3 locations are always the same, however the order of which you will obtain the parts in is not. I advise you understand where the parts are before you attempt this as you are timed while in the Dark Aether.

The first location is on the broken body of the crashed plane in the Crash Site. Looking from Stamin-up, it is straight ahead on top of the planes engine.

The second location is in the spawn room. It is directly under the stairs looking west. It is opposite the Rampage Inducer lantern. Looking at the stairs head on, it should be to the right.

The third location is directly opposite Pack-a-Punch next to the Aether Tunnel 'jump pad' in the centre most western part of the room, under the Control Room window. Looking at Pack-a-Punch, go down the stairs and keep looking forward, it is directly in front of you.

To build the Aetherscope, go to the Pack-a-Punch from the opposite side and there will be a crafting bench. That is the only bench you can build it on.

There is a diary near the computer on the desk in the Medical Bay, top floor above Speed Cola, pick it up. Now there are 3 different Vogel diaries you need to collect/listen to around the underground bunker.



















The following are the locations for the Vogel diaries that you must listen to; The first is directly under where you get the diary in the Medical Bay, under a little alcove to the left behind Speed Cola.



















The second is in the Control Room, on the right side of the displays. Keep walking and you'll eventually hear 'Anomaly detected' in between two displays.



















The third and final anomaly is right beside where you built the Aetherscope. It is just in front of the workbench.



















Once you have left the Dark Aether, go back to the Medical Bay computer where you first found Vogel's Diary and interact with the computer to input the password. The decontamination device in front of you should activate and glow purple.

While you're at this step you may as well go to the next round and charge up the D.I.E using the Remote Control. Firstly, go to the Yard (Spawn) and train up a good sized horde. Then run into the door on the right side of the Nacht building and to the left will be a small room. You'll hear 'D.I.E signal detected' when you are close to the room, as shown in the image below.



















Opposite will be a hole in the wall, interact with the prompt to activate the D.I.E. The zombies will be sucked into it and once it has finished sucking up the juices of the zombies, you are free to interact at the same location and then pick it up. Congratulations, you now have the wonder weapon.




















Upon the moment you obtain the D.I.E, head up to the Penthouse. From the Mezzanine collapsed roof, to the right will be a wooden box, shoot it with the D.I.E. It will break and drop a flask on the floor to the right of the door when exiting the Nacht building. After doing this head south until you see a glowing yellow canister across the rubble. Alternate fire with the D.I.E to start sucking it towards you, then pick it up.










Go outside to the Pond and turn right. Pick up the flask and head over to the purple growth on the tree and place the flask. Now wait 2-3 minutes until the flask is full of liquid nitrogen.

Now you want to go around the map and interact with the 4 elemental locked boxes, they are located in the following locations;

The "Fire" thermophasic upgrade is on a truck in the Pond, the truck is located directly opposite to the hole in the wall from Nacht leading into the Pond.



















The Nova 5 upgrade is adjacent to the crashed plane wing in the Crash Site. It is alongside the wall, roughly in the middle of it.



















The "Ice" cryo-emitter upgrade is in the Medical Bay just before the double doors leading to the Particle Accelerator, it's along the small shelves looking towards the decontamination machine.



















The "Electric" electrobolt upgrade is likely the hardest to see, it is located in the south corner of the Particle Accelerator room on the lowest floor. There'll be a small square corner among fences with a red generator to the right. Look at my mini map and its direction for a better read if you can't see it.



















Now what interacting with the boxes will do is spawn a bunch of Aether portals that you can jump through. It doesn't matter which order you complete them in but know that if you fail, you will have to wait until the next round to try again.

As we have already obtained the liquid nitrogen flask from the tree growth earlier, head down to the box in the Medical Bay and use the flask on the box. Now you should have the Cryo-Emitter.

Remember the fuse we took from the Dark Aether during the Pack-a-Punch step? We're going to use it. Head into the Aether portal right next to the box on the truck in the Pond, and start making your way over to the Weapons Lab. In the Weapons Lab, look opposite the Deadshot Daiquiri to see a laser cutter. Interact with it then you will start to be teleported back. Head back to the truck box and it should now be open.



















You also better remember we picked up the canister from the Nacht roof, it's time to go back to the Weapons Lab, but this time to the far left of Deadshot Daiquiri will be a gas device. Place the canister in the holding and kill a plague hound in front of the device then the plague hounds gas will start to be sucked into the machine. Wait a few seconds and you should be able to pick it up.

Note - You don't have to be remarkably close to the machine, and neither does the plague hound, just make sure it is close enough so that the gas covers the machine when the hound dies. Be wary of the hounds when they die, sometimes they can propel away from where you shot them leading to a missed gas dispersion. If this has happened to you, you'll know what I mean with that.


















Now you have the full canister, head over to the Nova 5 box in the Crash Site and place the canister on top of it. Knife or shoot it to explode the canister and the box should now be open.

This is by far the most difficult as it is entirely time based. There is an Aether portal in the Particle Accelerator room that you must enter to start this challenge, however, I would recommend memorising this next section so you are more familiar with the process in case you mess it up.

Firstly, there are 3 different energy modules around the map that you must suck up with the D.I.E (Note that you cannot suck when at full ammo, so you must expend ONLY one shot with the D.I.E Shockwave, this is because 15 ammo is consumed upon shooting). It doesn't matter what variant you use just as long as you shoot the appropriate amount, I.E. with a beam variant, shoot for a few seconds.

Alright, the locations of the energy modules are as follows;
The first one you should get is the Nacht Penthouse module. This is the furthest one and a good start. Once you have interacted with the Aether portal, run to the Penthouse, to the right of the Wonderfizz machine will be a glowing orange ball of energy. Use the D.I.E to suck it up then run to the electric box back in the Particle Accelerator room and shoot it with the D.I.E to deposit the energy and start making your way to the next module.



















The next energy module is beside Juggernog to the left. It is in between the hole to the bunker and Juggernog.



















The last energy module is opposite Quick Revive. Looking from the Crash Site entrance towards the mystery box location, it is slightly to the right. Follow the right wall if you can't find it.



















Once you have all 3 electric energy deposits in the electric box, you can now open it and change the variant, well done.




















This is probably the most confusing part of this Easter Egg due to how difficult it is to differentiate the coloured rings on the Device in the centre of the Medical Bay, so I've made an info-graphic to better show you.

For this next step, you need to shoot 4 separate cylinders on the Decontamination Device in the Medical Bay with all 4 elemental variants of the D.I.E Machine. I hope that this graphic can easily show you where to shoot.

North is looking towards Speed Cola. The graphic shows a top down view, take that into account when using it. Therefore the thermophasic cylinder is in the back left of the image below. If all else fails, just go round shooting all 4 cylinders with all the variants.












































Now an Aether portal has spawned just outside of the Medical Bay, looking towards the Particle Accelerator. Head through it and make your way back to the computer room in Medical Bay, but don't go inside, just outside is a red glowing box that has an anomaly next to it. Stand still and let the cutscene play out, don't shoot or the zombies will come after you again.



















Once you've returned to the Overworld, pick up the Aether Wrench and make your way back to the Yard (spawn). There is a tank at the back end, in each corner of the tank you can interact with it, do it until a zombie pops out the top of the tank. Kill the zombie and then throw a grenade into the tank. Alternatively, you can use a semtex and stick it to the open hatch.

Now a golden ball will have shot out the barrel and hit a tree in the Crash Site. Head over to the Crash Site from the Stamin-up side and you should see a golden ball on the floor. However, plague hounds will spawn when you get close, so take them out before picking up the device.

After picking it up, go back to where the anomaly was in the Medical Bay and place the device in to the red glowing machine outside the computer room where you picked up the Aether Wrench.

Now comes a fairly difficult part. You need to lure a Megaton zombie to the Medical Bay and trap its split selves into the Decontamination Device. It is easier to lure the combined Megaton here and then split it in the Medical Bay. Once this has been done manoeuvre around until the split Bomber and Blaster are sucked up into the device. Head back to the computer room and make sure everyone is in the room. You will then get a prompt to 'Start the purification process'. Do it and wait until you are free.

Once you are free however, a lot of enemies will spawn. Take these out before continuing for the smoothest transition into the next step.

Head over to the Nacht Living Room and there will now be an Aether portal, head through it and run through what would be the "Help" door to the right of the portal and continue right until you hear "Anomaly detected". Interact with the anomaly and wait. Now here's the kick, once you are out of the cutscene and back in the Overworld, DO NOT PICK UP THE PHOTO FRAME.










From here, once you pick up Orlov's Family Photo you will be teleported to the boss fight.

Make sure you are completely 100% ready for the boss fight as there are a lot of Megatons that spawn here. Make sure everyone has enough firepower to kill a Megaton, as the more players there are, the more that spawn. On top of this, 'Red' Mutant Megatons will also spawn which are much more difficult to defeat than the regular.

I strongly recommend at least double Pack-a-Punching the D.I.E and using the Electrobolt (Joltsurge upon PaP) as it is easily the most powerful variant. However, you can also PaP during the boss fight if you need to.

I would also recommend that you pause the game and read on from here if you haven't already read the guide and have a good understanding of what to do. It may be simple but it can be difficult to read about what to do whilst fighting an endless horde.

Once you are ready, pick up Orlov's Family Photo back where the anomaly was earlier and you will be teleported into the boss arena. Head over to Orlov and wait until his dialogue is finished. Get ready to fight.

Orlov will now run to 3 different locations. You have to defend him at each stop. As it's pretty simple, I don't really need to show screenshots of me doing it as that will just waste your time. Just follow Orlov and protect him until all the zombies disappear, then consult with this guide again.


This can be very annoying if you don't know the route so hopefully the next series of images can help. (Some images have me running or shooting, I'll do my best to show where to go).

In general, you want to be avoiding the blue lightning as it kills you pretty quick if I'm not mistaken. If the images are hard to read, firstly, I'm sorry and secondly, try your best to reach the other end of the room/map by avoiding the lightning and creating a path. In this instance, there is more than one path that you can take but I just chose the easiest one to follow as it's almost laid out for you.
Congratulations! You have now completed the Easter Egg.

This guide includes another side Easter Egg in which you receive a free Juggernog perk, if you'd like to skip this 'step' feel free to do so, it just helps make the main Easter Egg a little easier, plus it gives a bit more points early on by spawning additional zombies that you didn't kill in the dark teddy arena. You may also do this step at any time during the Easter Egg, I just prefer to do it early on.

Doing the Juggernog Teddy side Easter Egg will also grant a chance to receive a free RAI K-84 Wonder Weapon. If this happens, feel free to skip the RAI K-84 building steps, or another player can build it in their own time should they want it.

You can also look at the mini map for reference in case it is difficult for you to make out where I am in the screenshots. The area name combined with the position of the mini map and my surroundings should lead you to where you need to be.

Same as Die Maschine, I don't consider these to be a step in the Easter Egg, more so an essential in the map. Since the game pretty much tells you how to do it, I won't. Just get this up and you'll be good to go. However, there are a few items that you are better off collecting while turning on the power: they are listed below.

Starting from the Scorched Defence Aether Reactor, go into the Scorched Defence itself and inside the left bunker to find a shovel facing south. This is your first item.



















Heading onto the Rocky Defence Aether Reactor, go through the door on the ground floor of the Data Centre into Rocky Defence and you should come across a door leading to the Weapons Lab. Open it and to the left you'll see a glowing yellow blueprint on the wall, take it.




















As stated previously, this is entirely optional. This is around about the time I usually get this done.
Once power is restored and you head back to the Pack-a-Punch machine, go up the stairs, turn left and look left across from you, you'll see a blocked off balcony. There will be a teddy bear laying at the far end, just look at it for roughly 10 seconds and you should be teleported to the arena.



















Once you have arrived in the dark teddy arena, look around for a glowing purple 'aura' and run towards it. Shoot or knife it to destroy it. Do this 3 times until the zombies despawn and head to the middle of the map, there should be a glowing golden chest there. Open it for your free Juggernog and potential Rai K-84 Wonder Weapon.











Go to Mission Control and speak with Doctor Peck under the stairs. Once he tells you to go away, go back to Ravenov in spawn and talk to him then pick up the ID Badge he presents.










Now with this ID Badge, you need to unlock 3 cabinets around the map and take their contents. The first is located in the Courtyard near the stairs leading up to the teleporter.



















The second cabinet is located in Mission Control, it is in Engineering on the lowest floor of the building. Turn right when you enter the large door frame with the stairs to the left.



















The third and final cabinet is located in the Colonel's Office in Military Command. There are 2 ways to get here, first is the same route you took for the Aether Reactor then go up the stairs and to the right, and the second is to open the door on the 1st floor of Mission Control heading into Military Command, then walk forward into the Office.



















Start making your way towards the Barracks area and enter the Field Hospital. As you enter look around to find a Chemical Mixer on a table, interact with it and defend it against the hell hounds that spawn. Once it has finished mixing the chemicals, pick it up and run over to the vent above pecks room in Mission Control and place the Chemical Mixer. The vent should be to the right of the Mission Control doors next to the OPC Dome.










Now go to Peck and you'll see him start to dance, have a conversation with him. You are free from zombie attacks while he is talking and dancing so if you need to read up on the next step, take the time to do so now.

After you have finished talking with Peck, head outside to the Scorched Defence and go forward and keep right until you see a tank with a dead body lying on it. Run over and interact to get Kuhlklays Eye. You need the blueprint in the Weapons Lab to get the prompt. Kill the zombies that spawn and make your way over to the Weapons Lab.



















Use Kuhlklays Eye on the computer and retrieve the locker key that comes out of the desk. Head over to the Barracks (Tombstone perk door) and look for lockers inside both Barracks rooms. Keep going until Mimics spawn and kill them until they drop the Barrel Assembly item. Then get ready for the next step.





























Here is probably the most difficult part of the Easter Egg, more so since the Mimics can be a bit fussy sometimes. Go to the Data Centre, near Speed Cola there will be a device that houses 4 essence traps, take one and run to one of the following three locations.
Where the correct Mimic spawns is completely random, so be sure to check all 3 locations each time and cross them off once you've found the Mimic in that location.

You must lower the health of the Mimic pretty low before you attempt to trap them, as doing so with full health (or even half health) will guarantee a failed attempt and you will have to run back to get another essence trap. You can also only do ONE Mimic per round as the items do not all spawn at once.

Spawn - Scientist Quarters
Opposite the teleporter to the right, jump down onto the decayed balcony and run around until a Mimic spawns from one of the items.










Motor Pool - Garage
This is heading towards Juggernog, or the Jungle Defence area. To your left is a garage, to the right is the door towards the Aether Reactor. You should see items on the ground, run around and get the Mimic to spawn.

Military Command Control Room
This is further on from the Motor Pool, either heading from the aforementioned door on the right and going into the Juggernog room, or by opening a door from Planning Offices/Open Lot (west of Mission Control).










After trapping each Mimic, go back to the Memory Transference Machine and insert it. A dialogue should start with the name of the scientist (Sokolov, Brahms or Zabin) if it is correct. If it isn't you captured the wrong Mimic, so make sure you capture the Mimic that spawns from the item on the ground rather than one that spawns from a window. Once you have done this for the third time, stay at the machine and wait for a floppy disk to appear, then take it.




















Unlocking the OPC is as simple as using the floppy disk on a new computer in the Planning Offices. It is located on the East wall facing towards the OPC between 2 windows. Go inside of the OPC and wait until the stabilisation of the portal fails (or run in and out to activate it and train the zombie elsewhere whilst it finishes)



















Now return to Dr Peck and have a chat with him. Afterwards you should now be shut off from him, closing the shutters. Ravenov will now contact you and tell you to open the nearby locker for the Aethermeter, open it when he is done talking and take the device.



















Remember that shovel? You're going to use it now, so run over to the Open Lot outside Mission Control and go to the corner of the window (directly visible from the flaming vehicle). Make sure you understand what you're doing before starting this step, as you are timed.



















This can be a little confusing but around the area that you are in (Open Lot, Planning Offices and Engineering) there will be several canisters of Aether Crystals. Your job here is to inspect them and find the one without the black smoke inside. It should be COMPLETELY clear and devoid of black smoke. If it is too difficult to tell, wait a few seconds and see if it appears, if it doesn't, pick it up. Here's what the difference looks like.



















Once you have picked this up, head to Jungle Defence on the middle left fork and look around until you find another dig site. Same as before, check and read this section before attempting it. Digging will cause a yellow Aether Crystal Canister to appear and a small bubble to appear. You must stay inside this bubble as you survive the allotted time.



















Now, at this time Manglers will spawn. This is necessary as you must kill them (or to be safe, shoot their arm cannon, then kill them) to receive the final Rai K-84 weapon part.

Once the survive objective is finished, the bubble will disappear and you can pick up the canister. However, for the next and final canister you need the Rai K-84. So head to the Weapons Lab and place the Battery Cell into the charging dock (beside the armour station) and now you have to wait 2 full rounds. This is tedious as this generally means 3 round updates in some cases, as has happened to me before, but hopefully that won't happen to you.



















After you place the Power Cell, you need to do the Dartboard puzzle. Use the computer in the Weapons Lab and pay attention to the rotation of the arch that moves. This directly correlates to a dartboard segment. Remember or note it down. Here's a picture of the puzzle in it's entirety.



















You must shoot the number that is in the segment that the computer had shown. For example, in the image, the arch segment landed on 20, therefore I must shoot the '20' first. There are 3 segments you must remember, shooting the number each time on the dartboard in the Village Mess Hall in the spawn area beside PaP. Once you have shot all 3 numbers, shoot the bullseye in the middle of the board. This will eject a piece of the Rai K-84, pick it up.

Once the charging is done, pick it up and go to where you picked up the blueprint earlier. You can now craft the Rai K-84. Take it.


Head to the Field Hospital. Go towards the stairs to the Data Centre but go behind the stairs to the left, where the door to the Field Hospital is opposite the barricade window. Near this door in the corner will be another dig site.



















However the knack with this is that you have to shoot the Aether Crystal Canister with the Rai K-84's secondary fire to slow it down (Default keybind is 'B' I believe), before it teleports, so you can pick it up. I recommend shooting the ground first, then digging, then picking it up. If it does teleport, don't fret, just follow the trail quick trail it leaves as it teleports (best way I can describe this is Sombras, from Overwatch, teleport trail when using translocator). If you don't see the trail, just run around the Barracks area and you'll eventually see it again. It shouldn't leave the Barracks/Field Hospital area.










Once you have all 3 canisters, run to each of the 3 Aether Reactors and charge them with said Aether Crystals. Once done, you should receive dialogue from Weaver and the Omega PA System should say 'Power levels exceeding safety parameters' or something along those lines. Run to the OPC and start the stabilisation again. Congratulations, you have now failed the stabilisation for a second time!




















Now comes the fun part. You have to realign a satellite dish using the main computer in the Planning Offices. I won't show screenshots beyond the realigning computer as you'd want to see what happens next.

Using the computer, you have to use the controls on screen to guide a small dot to a 'star' on screen (the star is a glowing dot, bigger and brighter than the one you move). You must guide this dot until you hit a glowing dot that has no nationality assigned to it, also known as a question mark as shown below. If you hit a glowing dot that has a flag on it, you must find another glowing dot as it's incorrect.

READ AHEAD FIRST
After everything occurs with the satellite, follow the objective marker into the OPC and you will start a cutscene. Following the cutscene you will immediately enter the boss fight.

However, if you are underprepared, start preparing now. Get all necessary perks and Pack-a-Punched weapons, charge your ability and restock ammo. It isn't a particularly difficult fight, but you can get overwhelmed, so be careful. Interact with the OPC terminal when you are ready.

The fight is pretty much just a war of attrition, so keep shooting the Orda, especially when it flares its hole thing and lights red. Shooting it when it does this attack deals critical damage which can really help speed up the fight. Other than that, do your best to survive with the waves of zombies and Orda. Best of luck to you all.

Once you have killed the Orda, you have beaten the Easter Egg! Congratulations!

The Easter Egg doesn't actually start until World Wave 3, so pretty much just do your best to prepare for the Boss Fight. Get perks and upgrade your weapons, and be sure to complete all the side objectives as you will definitely need the points for preparation. I cannot emphasis enough that this Boss Fight is difficult, especially for newer players, those who don't regularly do EEs, players that don't deal well under time related stress or those under prepared.

I would HIGHLY recommend you use a very strong weapon as the Boss Fight in this Easter Egg is pretty difficult. My best suggestion is the M16 build that MrDalekJD built. I have slightly modified it to my preferences but it contains the same premise. This build has helped me quite a number of times, so here is it below.



















The following attachments are the main part of the build, the rest are my personal preference;

• Muzzle - Infantry Compensator
  
• Barrel - 20.5" Task Force
  
• Underbarrel - Field Agent Foregrip
  
• Magazine - Salvo 54 RND Fast Mag

However, my preferences (aside from the Optic) are purely function based.

• Body - Tiger Team Spotlight, for blue salvage.
  
• Handle - Speed Tape, nothing is better without unnecessary detriment.
  
• Stock - Raider Pad, sprint to fire time is a nice luxury.

As for Field Upgrades;
In solo, I recommend Aether Shroud. Simple explanation: so you don't die while trying to shoot the boss.
With 2 players, I recommend Ring of Fire and Frenzied Guard, both Tier 5. This is because 2 players shooting inside Ring of Fire is very destructive against the boss, and Frenzied Guard slows all non special zombies to a walking pace.
With 3 players, same strategy as before but with the third using Healing Aura for security.
With 4 players, similar strategy but the 4th also uses Ring of Fire. This is to keep the pressure on the boss as not everyone can recharge their Field Upgrade every time the boss loses its armour. So switching up who uses the Ring of Fire can help speed this up. Note that you don't need to use Frenzied Guard each Ring of Fire use, but it helps a lot.

For the necessary collectibles in Outbreak in the maps, I have compiled just one picture per map for each of the two Easter Eggs. This is to declutter the guide with too many images. I have tried my best to differentiate the steps. They will be labelled below.

Take note that this can only be started upon the arrival of World Wave 3. I would also recommend turning on subtitles for this step as they can be used to more accurately determine the correct active static noise of the radio and amplifiers. Subtitles also help narrow down the location of the radio when in close proximity, shown by the subtitle '[inactive idle static]'.

If you'd prefer to keep subtitles off then switch the amplifier signal noise until you hear Maxis speak.

On each Outbreak map there is a broadcast radio and 3 amplifiers. You must find the radio and interact with it, it will likely start a feedback loop to which you will have to kill an ambush of zombies. Once the ambush stops, check the radio and see which active static noise it landed on. Head over to the 3 amplifiers and switch their signal amplification to the one you saw on the radio. Once they are all the same active static noise, go back to the radio and interact with it then pick up the item it drops as well as the free points.

Now just head over to the Anomaly and use the new telephone icon in the menu, this will allow you to continue the Easter Egg on World Wave 4. After listening to the dialogue, warp to the next region.















































Now onto World Wave 4, you must go around the map looking for cymbal monkey statues. Each map has 4 of them, the one you want should have the letter M written in chalk next to it. Don't worry about these monkey statues either, they don't move so they'll always be in the same place but the correct one will move per attempt, so beware of that.

Once you have broken the monkey statue (by either shooting or knifing) pick up the Microfilm Slides that drop from it and start looking for a projector. Just play out the slides as you would in real life, go to the anomaly and go to the next region once you are done. If the next region isn't Ruka, you didn't watch all the projector slides. Advance to the next slide until Maxis stops talking, that will let you know when you can leave safely.






































I recommend you do the side objectives of this map prior to starting the main objective as once you ride the lift down, you have entered the point of no return and cannot get back to the open world. Getting at least a Tier 2 Packed weapon is a must for the rest of this Easter Egg as Tier 1 will likely be too slow (20,000 points is the price of a Tier 2 PaP). Also all machines you need are below in the missile silo after the lift so you're all good to go once you've got the points.

With that being said, enter the lift and make your way down. Run to Silo A and activate the power, there should be an objective marker there. Once you finish your cutscene with Ravenov, you will need to find 3 launch keys. Keep in mind that you can collect any key at any time, there is no specific order of collection. However, I will show the order I usually do it so feel free to follow along or do what feels best for you.






































Now when you head up to the main silo intersection room there will be a lot of miscellaneous items on the floor. Every single one of them is a Mimic in disguise. Easiest way to do this is to just run through them all to activate them then kill them in a train. Be careful not to get grabbed though, don't stand too close. Once this is done, you are free to safely get the actual key.

Run to the Silo C door, there will be a dead body on the ground guarding a key. Either moving close or interacting with the body will spawn an Alpha Mimic, it drops the key upon death so just kill it.

Go to SIlo A on the bottom floor and run around until you find a tunnel. Follow through it until you see an essence trap next to a barrel. Pick up the essence trap and run around Silo A until you find a glowing blue vent, this is a monkey. DON'T GET TOO CLOSE TO THE MONKEY and throw the essence trap near it. Give it a little time and it will teleport into the trap, then activate it. Once it is trapped, interact with it and pick up the key.
(Our essence trap got a bit bugged so we had to use a grappling hook to reach it as it hit an invisible wall and wouldn't come down, so sorry for the less than adequate screenshot here).

Go to Silo B and run along the bottom floor until you see an aether canister in between two consoles and interact with it. Now run around the silo destroying purple crystals and pick up the Aetherium Crystal Chunk that they drop. Continue to pick up 20 of these and go back to the canister to deposit them. Every 5 you deposit will spawn a Tempest so be careful. Once you have deposited 20, kill the horde of zombies around the canister and then pick the canister up.

With the charged aetherium canister in hand, run to Silo D and find the floaty glowy jellyfish. Go up (or down) the stairs until you reach the glowing grass on the stairs. Use the special ability of the canister and enjoy the ride. Once you are inside the jellyfish, look around for a Launch Key, it should be on or besides a corpse.






































This is the final point of no return, if you wish to upgrade your gear before you go to the boss fight, I would recommend you do so now as you will not have time after this step.

There is a console in each of the Silos on the top floor. I recommend you know where they are so you can get to them quicker but otherwise you have 30 seconds to input each key. Find a console and interact with it to insert the Launch Key. Now head to the others and insert them too. The game will tell you that the key is wrong if you inputted the wrong sequence, so keep trying until you get it.

The order of the keys is entirely random so keep going until it says 'Coordinates confirmed. All systems nominal. Initiating launch sequence.' instead of 'Incorrect key confirmation. Sequence aborted.'

• Make sure your Field Upgrades are fully stocked up and charged, this will lead to a smoother finish.
  
• Coordinate with your team before doing anything related to 'The Legion', I.E - shooting its chest armour or orbs.
  
• I recommend focusing everyone's firepower on a singular orb to destroy it as fast as possible, coordinate 'top left orb' or 'bottom right orb next/now' to make sure everyone's shooting the same orb.
  
• Getting a Death Machine is very worth it. It does tremendous damage to the Legion's health.
  
• Remember what was said at the start of this maps guide, coordinate and team up your Field Upgrades to kill it as fast as possible.

Once the sequence is confirmed, run to the silo intersection room and look for the stairs between Silos C and D and run up. The door should be closed for now if you've managed to get there fast enough, just survive until it opens, this is good gives you more time. Once it opens, the boss fight and timer will commence, so good luck.



















The Legion is literally just a giant Tempest so shoot its chest to destroy its armour, and don't worry it will take some time. Once the armour is lost, it will ball up and 3 electrical orbs will surround it. Shoot one of these orbs for as much damage as possible until it is destroyed. Then rinse and repeat until 'The Legion' is dead. The Death Machine support weapon is very good at damage too.



















Congratulations, you have completed what most regard as the most difficult Cold War Easter Egg! Nicely done.

Just want to quickly apologise for the lack of information alongside the screenshots, I got pretty burnt out when taking these screenshots so if you need more information helping you after this guide is published, let me know in the comments and I'll do my best to describe them.

Also, a quick way to find the maps is the find tool, CTRL+F. Use it to find the map that you're on.

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The Easter Egg doesn't actually start until World Wave 3, so pretty much just do your best to prepare for the Boss Fight. Get perks and upgrade your weapons, and be sure to complete all the side objectives as you will need the points for preparation.

You shouldn't be too dependent on Field Upgrades with this Boss Fight so you should be alright with whatever you want to use. I still recommend Aether Shroud and Frenzied Guard Tier 5 for survivability. As per the gun, use whatever you'd like with good firepower as you will need to defeat an Orda for the Boss Fight.

For the necessary collectibles in Outbreak in the maps, I have compiled just one picture per map for each of the two Easter Eggs. This is to declutter the guide with too many images. I have tried my best to differentiate the steps. They will be labelled below.

Upon entering World Wave 3, look around for a Red Rift Jump. You can find these on every map apart from Sanatorium. This is because Sanatorium is the next map you will be teleporting to and you cannot teleport to the same map after warping. Look at the next section down to find the locations of each Red Rift on each of the maps.

Once you have jumped through a total of 3 Red Rifts, there will be a golden orb flying out of the last Rift Jump. Follow it and pick it up when it lands on the ground, then you are free to warp to the next region.




























Located at the bottom left of the map, head over to the destroyed chopper and then secure the site. Once done, Interact with the audio recording held hanging on a corpse. This is pretty much it, sorry to disappoint this step.





































Firstly, you must head to the Bridge on the upper right side of the map, then you can start the next part. This is fairly simple, look around the map for a large glowing red Aethereal Orb. It can spawn in one of three locations, shown below in the Maps section. Once you have found it, you must shoot it in the direction of the Bridge where the Recon Rover is. Once you have shot it enough times and it now resides above the Rover, you can begin the next step.




























The Aether Bunny, also known as the Teddy, comes from one of three Mystery Box locations. For the Bunny to spawn, the box must not be currently active at that site. Head to the locations of the empty Mystery Boxes and there you should find a smashed set of crates (taking place of the Mystery Box when it's not there) and a teddy bear in the centre.

Go over to the teddy bear and pick it up. Now an ambush will occur, but fear not, just kill it and pick the teddy bear up again. You will be enormously slowed when holding the teddy bear like you are when you hold the Aether Canister during the Retrieve or Transport main objective, so get a vehicle. Then head back over to the Recon Rover and place it inside.











Here is where you want to make sure you are stocked up on gear as when you listen to the recording dropped by the Recon Rover, you will hit a point of no return. So make sure you are ready.

Quick tip before you head in, get the Chopper Gunner support to destroy all the regular and special zombies, then it's a 1v1 between you and Orda. This just makes the fight a little more manageable.

Once interacted with, the audio reel will start a mobile defence type objective where you just need to survive until the end of the route. After you have survived the trek over, you will be in a safe zone. Although, there are no machines or benches to upgrade or buy stuff so just head straight up the stairs and to the roof.

Head over to the scientists and interact with the audio reel on the ground next to them, this will then trigger the Orda to spawn below you once it is done. Just head down and fight, do it faster than 5 minutes and you'll have finished the Easter Egg, congratulations!

A quick way to find the maps is the find tool, CTRL+F. Use it to find the map that you're on.

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Sorry I don't have pictures but they should be pretty obvious when in game. The only one you have to look out for is the main building box, which is located at the very top/roof.

During the first step, you can leave a horde of zombies alive so you can more quickly upgrade Klaus however for the sake of my own sanity and preparing all of that, I didn't include it in the guide. Rather I kept it the way I do it, taking less effort and making it more genuine to myself. You are free to keep the zombies behind you if you would like however, whatever feels best for you.

You can also look at the mini map for reference in case it is difficult for you to make out where I am in the screenshots. The area name combined with the position of the mini map and my surroundings should lead you to where you need to be.

Firstly, you must open up the map until PaP. Once PaP is online and working, save up enough points to apply Brain Rot to your weapon. In the meantime, run around the guard towers next to PaP in "Death Strip" and start digging up the debris piles until you dig up a Microwave Dish.

Once you have Brain Rot on your weapon, head over to the Hotel and bring that zombie next to a boarded up door (Hotel Room 305), this room is southeast of the Hotel. Shoot the zombie enough so that it turns friendly, it should then start attacking the door, loosening the barricade and destroying the door. Head inside and interact with the corpse with the hands around it.

While you are here, run over to the Garment Factory and place the Microwave Dish on Klaus' upgrade station. You'll recognise it as a modified Armour Station.










Now the waiting and preparing starts. Just pass the rounds surviving, getting Perks and upgrading your weapons until a Panzersoldat spawns, kill it and pick up the Battery.



















Once you have everything, go underground into Klaus' room (aka Safe House) and build Klaus.
Note that once you have built Klaus, you must be quick here. Go to the Switch Control Room and look north towards a locker, command Klaus in front of it so that he bashes it open, then pick up the Blacklight.

Now run over to the Sewer Access and have him punch open a wall to the west above the stairs.
If you decided to keep a horde of zombies, let Klaus kill them until he goes away, that way you can upgrade him quicker later on.




























Once you have acquired the Blacklight, you can now toggle it to see markers around the map. Now you must get a Safe Code to open the safe in Hotel Room 305. First off, you must know that the order of the Safe Code is Garment Factory >> Sewer >> Grocery Store. You can also see this when in the area of the Code, as there will be a circled number 1,2 or 3. As for the locations of the Safe Code, they are as follows;

They are all in the same area of the room below the stairs.

• One is located below the 'I CAN END THIS' graffiti, next to the railing.
  
• Another is on a blackboard, southwest of the room.
  
• The final is above the door frame southeast.

• One is located under the pipes on the north side.
  
• Another is above the door frame opposite the ladder, to the left of the small pipes.
  
• The final is just before the broken wall on the right in the Service Passage, above the wall box.

• One is located to the left of the door, facing exit, right of the window.
  
• Another is on the shelf facing south.
  
• The final is in the corner of the shop above some sandbags and shelf under a poster.

Once you have all 3 numbers of the Safe Code, head to the safe in Hotel Room 305. When you interact with the safe, all zombies will stop targeting you so you are safe when entering the code.
You must input the number left to right, in the order previously stated.
Garment Factory >> Sewer >> Grocery Store.

If it helps, turn the camera left and right to better see which number you have selected on the dial. You should now see the CRBR-S laying there, pick it up.



















Upgrading Klaus here means both physically upgrading him to Tier 1 and crafting the Headgear for the Easter Egg. However, now you must kill with the CRBR-S until the Blazer variant drops from the zombies. This step entirely revolves around it, so keep the ammo for it. There is an antenna, Transistor and an Electronics Board that you must collect to create the Headgear for Klaus.

With the Blazer variant in hand, head up to Spawn (Apartment Rooftop) and look around until you find a small room on the roof. Above that room will be a giant antenna, shoot it with the Blazer CRBR-S and it will drop the Antenna item.










Run to the Electronics Store opposite the Diner with Juggernog in it, and look around for little radios on tables. There are 3 locations, which are shown below, and you have to shoot it with the Blazer CRBR-S until they drop the Transistor.



















In the Ghost Station, in the underground, there will be a power box above a ticket booth looking structure (there's also a chance for a harvester to spawn below). Shoot the box and it should drop the Electronics Board.

Now that you have all 3 parts, head to the Safe House room with Klaus and craft the Headgear on his head. If you haven't already gotten the kills to upgrade Klaus (you can check this by going to the Garment Factory, looking at the Modified Armour Station and see if the light is green), now is a great time as we are now going into the Laboratory, which triggers a lockdown effect with Tormentors.










If you haven't gotten enough kills (shown by the Modded Armour Station light) then summon Klaus just before you go inside the Lab and let him get the kills on the Tormentors. To get inside the Lab, you have to shoot the same wall Klaus punched earlier with the Blazer CRBR-S until it has completely melted. Always beware when entering the Lab as the round will change, and it will change into a Tormentor round regardless of what round it was previously. I would suggest that you keep one zombie alive before entering to near maximise points.

There is also a way to kill the last zombie then enter as the round changes to fully maximise points and not let the round turn even higher by entering the Lab as the round number is flashing, however this may be annoying or difficult for some players, but it's still a possibility



















Once all the Tormentors are dead, the orange bubble surrounding the warhead and machine to the right behind of it will disappear. Head over to them and interact with them both, take note that when you take the device from the machine beside the wall, you will lose your tactical item. Interacting with the warhead takes the canisters which you will need for the next step. To open the machine beside the wall, shoot the light grey hatch with the Blazer CRBR-S.




















With the Endstation Lure and the three canisters in hand, you now must find three harvesters around the map. Unfortunately, there are seven locations so you'll have to run around and find them. All seven locations are below;














































Once you have found the three harvesters, put the canister into the harvester by interacting with it and wait for the canister to fully descend into the machine before attempting the next part, otherwise if you do it too quickly, you will have to get another Endstation Lure. Then throw the Endstation Lure relatively close to the machine and kill the Tempests that spawn around it.



















Here's the interesting part, once the Tempests are dead and the souls have been collected, picking up the Aether canister that is in the harvester will trigger an ambush. Pick up the canister and make your way back to the lab, and put the canister into the warhead device. You may kill everything in your way as they do not count towards the round, after all the ambush entirely consists of Tormentors and Manglers. Repeat this for each of the canisters until you have three Aether canisters in the warhead.










If you haven't upgraded Klaus yet, do so now. You can do this by getting the appropriate amount of kills and calling Klaus to the upgrade station in the Garment Factory. This will start an active defence session that you will need to protect Klaus under. If you do not protect Klaus while he is being upgraded, you will have to wait a round (and however long Klaus takes to recharge) to try again. My advice is to take Frenzied Guard Tier 5 in solo, and a Ring of Fire if duo and above.

Remember you can switch your active Field Upgrade mid game by choosing a new one in the loadout menu after pressing pause.

If Klaus has just been upgraded, quickly run to the underground train and command him to stand on the Eastern-most track, opposite Mule Kick. Then go to the switch control room and pull the railway switch to call the train. Now you have to act fast.










Once he has caught the train, run over to it and enter it. Kill the zombies inside and look around for Rico's Keycard and a Bomb, then run out. Take this moment to breathe and relax until the next step as this is now the 'endgame'.










From here, go to the Safe House and use the Keycard on the computer sitting opposite Klaus, then interact with the computer three times until an image of a satellite appears. If the satellite is green, then we are good to go but if it is red, go to East Berlin Street's computer and access it there.



















If you see the green satellite, interact with it to spawn a large beacon with a HVT Megaton and several high level Mimics in the PaP area. Head over there and kill all but the Megaton. This is because you can guide the Megaton to Easter Berlin Street to make the entire step far easier (of course you do not have to do this, it is just a recommendation to lessen the risk of failure). If you are in co-op, you can just kill the Megaton and each pick up the Uranium it drops.




























Once the Megaton has been killed, go to the workbench in the Military Tent in East Berlin Street and start crafting the Uranium Device. Once you have crafted the device, head to the top of the Korber building and place the device on the zipline. Craft another Uranium Device and head up to the Destroyed Penthouse, and then place the device on the zipline looking towards the Korber building. Once this is done, the devices will collide and create a cleansed Uranium rock. Just take this to the Warhead back in Valentina's Laboratory.

From here you must not add the cleansed rock into the Warhead as it will start the boss fight unless you are absolutely ready.

Do the same thing mentioned before with another Megaton, however this time, the Megaton will appear on the Spawn rooftop. Cleanse the uranium but this time put it near the Warhead instead of into it. This ensures that you have enough time to comfortably prepare for the boss fight and enter at your own pace.

Make sure you know where the cleansed Uranium rock is so you don't lose it and start preparing for the boss fight. The basic perks and tier 2 CRBR-S should do the trick as a minimum, I've found you frequently run out of ammo during this fight. Armour is less necessary as one of Valentina's attacks absolutely obliterates your armour, so if you don't have it it's not so bad. It is still recommended to have it for regular zombies and if you can easily dodge this attack.

Once you are prepared, head over to the Warhead and input the cleansed rock. Then simply follow the instructions given by the game. However, here's a few tips before you head in;

• If you have Aether Shroud, use it when she does her crystal beam attack, this is prefaced by her standing up, raising her arms and three balls appearing above her head.
  
  
• If you don't have Aether Shroud, find somewhere to hide. LoS blockers help a great deal with this attack.
  
  
• Once you see her summon an orange bubble and become immune, and summon a ring of zombies. Kill the zombie that she has the orange beam on first, then continue to kill the rest as she is siphoning health from that current zombie.
  
  
• Starting on the second phase, there will be a new massive damage AoE attack prefaced by wavy blue lines on screen, when you see this, hide behind something immediately.

This is pretty much it, once you have defeated all stages of her fight you will be confronted with a cutscene. Once this is done, guide and protect Klaus from the oncoming horde and that's it.

Congratulations you have completed yet another Easter Egg.

There is numerous ways to obtain the Chrysalax Wonder Weapon but the best usually involves obtaining it yourself through the Easter Egg. It is recommended that you at least try get it from the Der Eisendrache dragon mini game but if you don't it's no big deal.

This map is pretty much heavily dependent on the Chrysalax, be it for specifics in the Easter Egg or just for raw damage or even survival, Forsaken will be far easier with the Wonder Weapon. That way I recommend using a Melee weapon to start out with as you will also need to get Melee kills to craft the Chrysalax later on in the game. Use something quick like the Sai, E-Tool or Wakizashi.

You'll also likely need to switch out your Field Upgrade a few times in this guide as you need to start with Tesla Storm for the Arcade Machine step, so make a Tesla Storm loadout and then once you are done with that step, change it back to your preferred Field Upgrade.

You can also look at the mini map for reference in case it is difficult for you to make out where I am in the screenshots. The area name combined with the position of the mini map and my surroundings should lead you to where you need to be.

Before anything else, make sure you enter the Donut Shop on Main Street and then come back to the shop 2 rounds after you have lifted to Lockdown to start the Wonder Weapon building process.

I know it's not much of a step alone but it encompasses most of the map so here it is. You want to make your way through the map until you reach Pack-a-Punch. (This guide assumes you already know how to play the map). Once you reach PaP, lift the initial lockdown and then there will be a little button on the closed panel nearest to the way you came in from the Reactor Room. Push that to initiate a small cutscene.



















Once the cutscene is over, there will now be three distinct giant crystals around the map. One will be in Spawn/helipad, another will be in the Reactor Room and the third will be on top of the shop in the Storage Zone 5 Rooftops. Remember these as they will be useful later on. Also do not shoot or destroy the orbs flying around the crystal, you will spawn an ambush and if you aren't ready for it, don't do it.

To destroy these crystals you're going to need the Chrysalax Wonder Weapon, but we'll get that later, for now leave them be and head to the Board Room.

From here you should be in the Board Room, head to the far back (where the Teleporter to Burgertown is) of the Board Room and you'll see a big orb ball above the door in the corner. You need an Abomination to charge into that wall and dislodge it down. Pick up the Housing Unit and go in to the hallway of the aforementioned Burgertown Teleporter. Oh and don't worry about the Abomination, it will spawn at the other end of the Board Room when you enter the room itself and if not, run around in that room a little bit, it should spawn.










Now manoeuvre the Abomination into the Hallway so that it will do its electric attack towards a crystal geode. You can do this in either the Hallway to the Reactor Room, or Hallway to Burgertown Teleporter (technically you can do it anywhere there is a crystal geode but these spots are easiest).
Once it has shot the crystal, you should see an Energetic Geode item, pick that up.




















This is where you'll need the Tesla Storm Field Upgrade, so make sure it is ready to be used. Head towards the Arcade and stand near the RC-XD Grand Prix machine with at least one zombie and use the Tesla Storm to charge the Machine.

After looking online for various different strategies for this Easter Egg, I came across using an arcade token on the World at War machine and completing that mini game to get enough rare salvage for a Flamethrower support weapon (needed in a later step) and this is where we're going to utilise this tip.

Once you have electrocuted the zombie and powered the Grand Prix machine (which should now cost 2000 points to use) run over to the World at War arcade machine use it. If you don't have an arcade token, melee the 'token holder' in the corner of the room to get a free one, it usually costs 10,000 points.


After entering the World at War machine, change your Field Upgrade to your preferred (or Ring of Fire, that is very useful in the boss fight but not needed) and finish the mini game. If you successfully finish all three rounds, you get a Full Power power up and the required rare salvage needed for a Flamethrower. My tip for this mini game is to headshot the zombies and DO NOT miss, there is very little room for error here.

Once out of the mini game, purchase the Grand Prix machine and drive the RC-XD into the Video Electronics Store. Go behind the counter, wait for a pulse to knock down the vent, then enter the vent and blow up the RC-XD. It is best you wait until the end of the round for this as bumping into ANY zombie will cause the RC-XD to explode. Check below for the route.


Now head over to the store and pick up the Monitoring Device. This is used to build the Aetherium Neutraliser's interface.

It is recommended to build the Chrysalax now before the Fuelling Lockdown in the next step as to better prepare for survival. So head back to the Donut Shop on Main Street and start that waved Survival. The first wave is Plaguehounds, the second is Mimics and the third is Tempests. Just survive and then pick up the Polymorphic Crystal Core behind the counter.



















Craft a Flamethrower at a buildables Bench and head to a giant crystal. Shoot or Destroy an orb and pray that a Tormentor spawns in. You will know by its distinct audio cue. If you have killed the wave without one, run to another crystal and do the same. Eventually you will find one. If you've ran through all 3 crystals, repeat the cycle with the second orb on each crystal and try again. if that doesn't work, just wait until a Tormentor spawns in during the rounds or attempt the Fuelling Lockdown without the Wonder Weapon.

If a Tormentor spawns, equip the Flamethrower and kill it with fire. I believe this also works with Molotovs but I can't be sure. Once you've killed it, pick up the Tempered Crystal Heart.

Now with all three parts, go to the Reactor Room ground floor and run around until you find a tank/pool of liquid. Insert the parts into the liquid and start getting melee kills around it. After roughly 10-15 kills, the Chrysalax Wonder Weapon should appear. Take it.



















This step is tricky when not playing in Solo as you need every player to interact on a panel at the exact same time, so make sure your team is coordinated.

From here head to the Fuel Processing area (where you built the Teleporter to the Bunker) and you'll see four large tanks devoid of liquid. Head over to the panel on the side (in co-op, each player has to be at one themselves) and interact when ready to start the lockdown. In Co-op, make sure everyone activates the panel at the same time otherwise you will have to wait until the next round until it is ready to be done again.

From here, simply survive the lockdown and pick up the Fuel Tank in the centre of the room.





























The aforementioned large crystals in the Bunker, Spawn and Main Street will now come to use. Here you want to destroy all the flying orbs around each crystal and then use the Chrysalax Axe form to destroy the actual crystal. It will shatter and drop an item to which you will need to pick up and throw into the recently spawned Abomination's mouth.

The Chrysalax' SMG mode does a lot of damage to the flying orbs, so I would suggest using that against them.




























You will now see the tail from the Abomination start to glow bright red. Once this happens, kill the Abomination. and pick up the Catalysed Crystal Shard. Now repeat this for all three giant crystals. See the first step for the locations if you do not remember where they are.

Once this is done, head to main street and find the workbench at the very end, it is surrounded by debris. Build the Aetherium Neutraliser and enjoy the conversation.

After the conversation ends, you will be prompted to start the Neutraliser. This is the point of no return, and although there are machines at the end of this segment, make sure you get the points and upgrades now as this is the last chance you will get to obtain a serious amount of points. (Zombies from here on are more scarce netting you less points overall and possibly missing out on a perk or PaP).



















Once you have all your gear, start the Neutraliser and keep going forward. You will have to charge the Aetherium Neutraliser however: you do this by finding and destroying orange crystals outside the safety bubble, picking the remains up and depositing it into the Neutraliser. Repeat this until you get to the end of the tunnel where all the machines are located.





























Walk up to the large door and interact on it when you are ready. This starts the fight. Run to Maxis (she will be floating with a purple ring below her). You should always be running for some sort of cover when the Forsaken attacks you. Focus all your fire on the shoulders of the Forsaken, they each take one third of his armour and will shatter when destroyed.

Go to Maxis and start to kill zombies in her purple ring, she will float to one of the mounted guns beside you when she has enough energy. Get on this gun and focus fire on one of the shoulders that you destroyed, Do not focus fire on the crystal parts of the Forsaken, this will waste time and a gun charge.

Repeat this for his other shoulder and you should be good. A small cutscene will start once both shoulders are shot off. Once you are back shoot the stomach crystal and repeat the previous actions to destroy his stomach. Then again, repeat for the Forsaken's head.

After this you are forced to go down, this is part of the Easter Egg so don't worry. Although you can make it a challenge with your friends to see who can survive the longest (the longer you go on the more passive damage you will take, I ended on 100 health bursts, haha).

And that's it, enjoy the cutscene and enjoy the new starting rarity on all of your weapons.
Congratulations, you have now completed all of the Easter Eggs in Cold War. I salute you.

Applying the rarity is a pretty simple process, all you have to do is keep setting up an Outbreak Collapse lobby until one of the choices is Zoo, then enter the game. Once you've loaded in, head straight for the area marked on the map below and you should see a stonehenge looking rock formation.










Firstly, make sure that all six pillars are lit up as that determines your rarity, then interact with the smaller stone alter in the midst of them and enjoy the cutscene, then enjoy your new rarity.

For those curious about what I was going on about in the header paragraph, below is the link to my Black Ops 3 Zombies Super Easter Egg guide.
https://steamproxy.net/sharedfiles/filedetails/?id=1716003126
If you also maybe needed to finish off Black Ops 3's achievements here is another guide that I can suggest, I hope it helps :)
https://steamproxy.net/sharedfiles/filedetails/?id=1823149481

Thanks to all those who used and supported my Black Ops 3 guides, that love from the community has made me want to make this guide to further help the same people and even more alike, so thank you all from the bottom of my heart, I hope this guide can provide the same again for all of you.
I'll hopefully see you fantastic peeps in the next zombies game, pray to the 2023/24 release haha.

I also want to thank my good friend Salty for playing with me as well as supporting me through the Easter Eggs, so if you're reading this, appreciate you man, thank you.