Note: I am not the creator of the mod.

Upgrades. To those of you who are familiar with MvM, they are an essential part of completing a mission. This modification allows you to really bring out your strategic thinking on upgrades, removing most of the bounds and allowing you to really focus.

Plus, UU brings something new - most maps have extra missions that are have UU in mind, however, you still can play regular missions.

This guide was generally made for the server listed below, however, because there are other UU servers, menus might vary.

• 74.136.72.39:27015 - US MvM.

Regular MvM upgrade stations have been disabled. Instead, you use a menu to do everything.
To bring it up, type !buy, !upgrade or !shop (can replace ! with /) into the chat or press both the TAB and reload keys (+scoreboard, +reload buttons) at the same time.

Want to refund upgrades on a weapon? Respawn with a different weapon in that slot.
Want to refund body upgrades? Switch to a different class, however, this will also refund the upgrades on all weapons that had been upgraded already.

If you want to customize the menu appearance and power supply display, open the menu and press 9 for "Next", which will let you open the Menu preferences.

1. Menu opens on respawn [On/Off]
   Choose weather or not to have the buy menu up when you respawn.
   
2. Power bar display type [power|maxpower/5barstyle/vert. 5bar style/thin bars/%/10bar style]
   Choose out of 6 ways to display the power you currently have.
   
3. Display !specials names [On/Off]

If you do not want to keep pushing a button to purchase a single upgrade a 100 times, then, perhaps the qbuy command will help you - it allows you to purchase a single upgrade up to a hundred times per command.

Usage: /qbuy [slot 1-4] [upgrade menu category] [upgrade menu entry] (optional:[nb of buys])
Slot: 1 body 2 primary 3 secondary 4 melee
Example: /qbuy 2 1 1 will make you buy extra damage for primary one time.
Example: /qbuy 1 1 2 10 will make you buy health regen 10 times.

You can also use the qbuy in console, which can allow you to bulk-purchase upgrades. To do so, seperate each qbuy with a semicolon.
Example: qbuy 1 1 1 24; qbuy 1 1 2 31; qbuy 1 1 3 25; will make you buy increased max HP 24 times, health regen 31 times and maximum power supply 25 times.

• Protection upgrades contains HP & it's regen, power supply & it's regen, armor.

• Protection upgrades (advanced) is self-explanatory. However, it lets you increase health from healers, avoid bleed, etc.

Avoiding being slowed/stunned, bleeding, being on fire or jarated are calculated chances.

• Physical upgrades lets you increase movement speed or jump height, along with reducing knockback that you receive when taking damage and other useful stuff.
  
• Ammo upgrades will allow you to increase maximum ammunition carried. The increased ammunition can stack if the weapon that you equip already has an ammo increase stat (Jumpers and Scottish Resistance as example).

Armor has been reworked in it's functionality - it is based on your current power supply level compared to the upgraded amount.

If you need that extra bit of damage or fire rate, then have a look at the weapons' special tweaks! These will provide you with options to either add armor piercing damage (which is, essentially, an another damage multiplier), which caps out at 500%, fire rate, which maxes out at -70%, etc.

Most of the downgrades that are applied by the special tweaks can be removed, like recoil, projectile deviation, reduced maximum ammo, fire rate penalty, reload speed penalty, projectile speed penalty, etc. However, blast radius reduction is unremovable for rocket launchers, grenade launchers and stickybomb launchers.

• Assault Weapon - applicable to all scatterguns, shotguns, pistols and miniguns.
  Increases armor piercing and reduces bullet spread in exchange for a fire rate penalty and recoil penalty. Penalties can be removed.
  
• Fast Shot - applicable to all scatterguns, shotguns and pistols.
  Increases your fire rate in exchange for increased bullet spread. Stacks with currently existing fire rate upgrades. Penalties can be removed.
  
• Bigger Caliber - applicable to all scatterguns, shotguns and pistols.
  Increases your armor piercing damage in exchange for fire rate and reload penalties, alongside reduced ammo for the primary (secondary if it's a pistol). Penalties can be removed.
  
• Armor Piercing Explosive - applicable to all blast weapons.
  Reduces the explosion radius of the weapon in exchange for increased armor piercing.
  
• Army of Not Many - applicable to all blast weapons (except for Cow Mangler 5000).
  Functions in a similiar manner to Bigger Caliber for bullet weapons. Massively increases armor piercing damage in exchange for fire rate, reload, clip size and projectile speed penalties. Penalties can be removed.
  
• Some Beggar Tweak - applicable to most weapons (except for energy-based weapons).
  Will increase bullet spread / projectile deviation and apply a penalty on reloading and clip size, however, you will be able to shoot faster. Requires you to load the clip by holding left mouse button like Beggar's Bazooka.
  
• Some Other Beggar Tweak - applicable to most blast weapons (except Cow Mangler 5000).
  A simplified version of the above listed tweak - increased projectile deviation in exchange for increased fire rate. Penalties can be removed.
  
• Heavy Electric Motor - applicable to all miniguns.
  Adds a penalty to spinup time and ammo consumed per second (ala Huo-Long Heater) in exchange for increased fire rate and armor piercing damage. Best keep a dispenser nearby so that you don't chew through your ammo. Penalties can be removed.
  
• Slow Swing - applicable to most melee weapons.
  Applies an unremovable fire rate penalty to your weapon in exchange for armor pierced damage.
  
• Ammo becomes health - applicable to most melee weapons.
  This special tweak doesn't work as of recent updates.
  
• Fists of Steel - applicable to Heavy's melee weapons (all-class weapons won't have this tweak).
  Applies bonus armor against ranged attacks (bullet, blast, fire, etc) while adding a vulnerability to melee attacks. Penalties can be removed.
  
• Caber Dosage - applicable to the Ullapool Caber.
  Increases damage of the caber explosion in exchange for increased damage to self from it. Penalties can be removed.
  
• Honor! - applicable to all swords and Soldier melee weapons.
  Adds the honorbound effect of Half-zatoichi to your sword. 100% of your HP will be restored on kill. However, you can be killed by any opponent that wields the same weapon in one hit and vice versa. Honorbound can be removed as a penalty.
  
• Long Bow - applicable to all bows.
  Increases the time that it takes you to 'pull back the arrow' in exchange for armor piercing damage.
  
• Concentrated Shot - applicable to all sniper rifles.
  Adds a reload & recoil penalty alongside an 'ammo per shot' penalty in exchange for armor piercing damage. Best keep a dispenser nearby so that you don't chew through your ammo. Penalties can be removed.
  
• Hitman - applicable to all sniper rifles.
  Machina-like penetration of all players when fully charged with an extra +50% damage bonus. No penalties.
  
• Doktorrrrr - applicable to all mediguns.
  Sacrifice your ubercharge build rate in exchange for an additional heal rate bonus which stacks with your current heal rate bonuses. The Uber build penalty can be removed.
  
• Higher Pressure - applicable to stock flamethrower and Phlogistinator.
  Reduces maximum ammo and adds an 'ammo per second' penalty, which drains your ammo faster when you're firing in exchange for increased armor piercing damage and adds afterburn damage. Penalties can be removed.
  
• Temperature Rise - applicable to stock flamethrower and Phlogistinator.
  Similiar to Higher Pressure, only it's just the faster ammo drain when firing and increased armor piercing damage. Penalties can be removed.
  
• Sentry Bigger Caliber - applicable to most of Engineer-specific primary weapons.
  Reduces the fire rate of your sentry and maximum metal that is carried by the player in exchange for extra sentry damage which stacks with the current sentry damage bonuses. Penalties can be removed.
  
• Sentry Heavy Motor - applicable to most of Engineer-specific primary weapons.
  Reduces your movement speed in exchange for extra sentry damage which stacks with the current sentry damage bonuses. Penalty can be removed.
  
• Fast Laser Shot - applicable to Cow Mangler 5000, Righteous Bison and Pompson 6000.
  Increases fire rate, but also adds a reload penalty. Penalty can be removed.
  
• Heavy Laser Shot - applicable to Cow Mangler 5000 only.
  Increaser armor piercing damage, but also adds a reload penalty. Penalty can be removed.
  
• Short Charge - applicable to all shields.
  Increases shield bash damage, but reduces the overall time that you can charge. Penalty can be removed.

UberUpgrades brings some interesting features that you can purchase as an upgrade (most of the UberTech has multiple levels, increasing effectiveness and/or range and reducing cooldown with each level).

If you have multiple UberTech purchased (or, as Engineer, you have purchased BackSpencer, SentryHat or SentryWrist), you can switch between them via your spray button, which is usually "T". To activate the selected option, push Special Attack like you would activate the Medics' shield from regular MvM.

Most of them will use your power supply, be careful. Those that will will require you to hold down the Right Mouse Button (charge level will be shown next to power supply) and then thrown by swinging your melee weapon.

Cooldowns reset when you respawn after dying.

• FireBolt - Launch a fireball that does damage to opponents. Requires to be activated, charged and then thrown. Damage scales with charge and level.

• Fus - Ro - Dah - Airblast projectiles or opponents away. Requires to be activated, charged and then thrown. Range scales with charge and level.
  
• Ball O' Lightning - Launch an electric ball in a straight line that sucks opponents (even those that are under the effects of an UberCharge) in when next to them. Requires to be activated, charged and then thrown. Damage scales with charge and level.

• Charged Strike - Shows an airblast visual effect and causes blast damage in front of you.
  Each level will increase power supply consumption, damage, amount of strikes and decrease cooldown.
  
• Smoke - Deploy a massive fog that blocks view of players. Has only one level. Has no effect on robots!

These require you to hold the left mouse button while having your melee out to 'charge' the distance the grenades will fly.

• EMP grenade - Enemy got too carried away with Uber? Throw this at them and have it nullify their buffs! Range is increased with each level.
  
• Frag grenade - Throw this at the opponents to deal blast damage. Range/damage is increased with each level.

These do what is told on the tin - Uber canteen gives you Uber, buff canteens give you their respective banner effects, etc. Level determines the time (in seconds) that you will be under the canteens' effect while also reducing cooldown.

UU lets you use powerups from the Mannpower game mode. Each one of them has several levels to upgrade. However, once activated, they will drain your power supply at a steady rate whilst you are under the effects of the powerup. To combat this, have a decent amount of power supply, have your power supply regen rate be at least 10 and have a dispenser in range for best results.

• Heavy's miniguns can have +130% bullets per shot at maximum, while single-bullet weapons (revolvers, Shortstop, etc) upgrade via full +100% bullets per shot, up to 4 times max. Shotguns have +200% bullets per shot maximum.
  
• Rocket launchers have a "Rocket Control" upgrade, with which you can control projectiles mid-air with your aim. This also includes the FireBolt from FireTech.
  
• Snipers' backpack items, Engineer's Wrangler bring up a menu for purchase of cheaper health and additional armor. Demoman's boots only have the cheaper health in addition to charge upgrades (chrage duration, charge recharge, turn control, etc).

Keep in mind that damage upgrades alone will not get you far, instead, you will have to think with special tweaks to do some serious damage. Think of armor piercing as yet an another multiplier to your overall damage.

If you need a lot of health, you can use Demoman's boots, Engineer's Wrangler and Sniper's shields to upgrade your maximum HP faster with less money.

Feeling supportive? Engineer has 7400% maximum dispenser range (the ammo and health might not go through walls, but power regen still is boosted if you are theoretically in range of a dispenser), but if you want to revive/heal really beefy players (in terms of HP) fast, go for the special tweak on the medigun and remove the Uber penalty. It acts as a multiplier for your heal rate, which, with enough, time, can get your overall increased heal rate to surpass +50%k. If you also have your team upgrade their health from healers, it also acts as an additional multiplier to your heal rate!

Focusing on damage as Engineer? Your sentry damage can be further upgraded with special tweaks on Engineer-only primary weapons, and the penalties on reduced metal and/or movement speed can be removed only to be reapplied again with the sentry damage stat being increased. Early game should be focused on Sentry Bigger Caliber - the max metal penalty is cheaper to remove, but that will leave you with a fire rate penalty on the sentry, so do not focus on it when you move into the higher paying waves.

Wanting to try out Kamikaze? The Kamikaze allows you to blow yourself up after a few seconds of activating it (if you're not charging with the shield, you will taunt and 'explode' after the taunt ends, so upgrade your gesture/taunt speed in Body upgrades). The amount of damage is based on your maximum HP (overheal doesn't count), but you can upgrade the damage scale and range of your 'explosion', but they're very expensive. There's a bug associated with it.

Feeling fancy? Taunt kills are affected by the upgraded weapon that has a killing taunt. That includes applying bleeding duration, damage upgrades, etc.

• New Pyro weapons aren't identified properly by UU, thus, they do not have their own set of upgrades.
  
• Upon switching to a class, some weapons might give you the Body upgrades section. To fix this, please switch to an another weapon in the loadout, respawn and then switch back. Some skins do not work with UU entirely.
  
• Powerups are dropped if you're in the spawnroom, but your power supply is still being drained. Deactivate the powerup by pressing Special Attack.
  
• While the wave is active, some bots might get stuck in their spawn zone. Use the Ball o' Lightning to try and pull them out.
  
• Flame size on all flamethrowers is bugged. Avoid the upgrade.
  
• Vaccinator overheal build rate penalty removal is bugged - if you do, you will not be able to overheal players.
  
• If you perform the Kamikaze whilst you can be revived almost instantly, you may end up in a glitched state where your HP no longer appears, this is essentially an 'undead' bug. You can be one-shotted by anything, however, you still can perform the Kamikaze again to deal damage and, once respawned, you should have your HP back to normal.
  
• Qbuying downgrades isn't entirely functional. Experiment with binds that select the downgrade in menu automatically after the qbuying of special tweaks is done. Examples:
  
  1. "qbuy 2 3 1 4; slot1" - for Engineer's primary weapon, selects 1st stat in downgrade menu that is open.
     
  2. "qbuy 3 4 1 4; slot2" - for Medic's mediguns to automatically purchase the Doktor! tweak and buy off the uber build rate which would appear on 2nd stat.
  Adjust these values as needed.