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EVAC (Fixed CO-OP Campaign with CSM support)

You can either play this by yourself, or with friends!
A big patching up of the fabulous original, with permission from the original author, perfect_buddy.
This version has a ton of bug fixes, additions, optimizations, and can now be played in Sandbox! There's too many changes to fit in the description.
Click here to view the list of changes.
Your first option is to adjust coop_evac_zombie_hp_multiplier. Set it to 0.5 to half all zombie health. For the masochists out there, you can also set this higher - try beating the campaign with health set to 2x!
If you'd rather make it GMod's default difficulty, type coop_evac_changes_enabled 0 into console. This'll remove ammo limits, reduce zombie health, and damage.
Warning, this WILL nerf the HL2 weapons back to default damage. Use custom SWEPs!
This campaign uses lua_run to power map transitions. Don't override it or you'll break the campaign.

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BRIEFING
There's zombies everywhere and you, with or without friends, need to get from Florida to Pennsylvania in under 24 hours for the last EVAC. You must travel across four different maps. Well over a thousand zombies stand and shamble between you and your goal... can you make it to Pennsylvania in time?

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RECOMMENDED ADD-ONS

• EVAC Zombie Sounds - How zombies sounded in the original add-on. Highly suggested install! WARNING: Overrides zombie sounds outside of this campaign!
  
• Real CSM - The intended way to play this campaign is with Real CSM. Bright, sharp shadows that update in realtime, making this campaign loads easier to roleplay yourself into.
  
• Headcrab Takeover - Gives zombies much more believable AI, and makes headcrabs far, far deadlier. (Turn down health threshold for headcrab takeovers to 50 HP for intended difficulty.)
  
• Sabre-aN's Headcrab Zombie Mod - Adds plenty of zombie variety - you'll see citizens, rebels, and even metropolice as zombies, merging with the crowd.
  
• Weapon: Setup, Transfer And Restore - Automatically transfer between maps with your weapons and ammo count. Works in multiplayer! Great with Weapon Editor & Replacer, if you want to use your own SWEPs!
  
• Weapon Editor & Replacer - With this add-on, you can disable HL2 weapons from actually giving you the weapon, and instead give ammo. Perfect with Weapon: Setup, Transfer And Restore, if you want to use your own SWEPs!
  
• [TFA] Killing Floor 2 - Off-Perk Weapons - This campaign was balanced around the KF2 TFA SWEPs. Try playing this using the 9mm Pistol!
  
• [TFA] Killing Floor 2 - SWAT Weapons - This campaign was balanced around the KF2 TFA SWEPs. Try using the UMP later on!
  
• [VManip] Manual Pickup - Stop yourself and your friends from vaccuming up all the weapons and ammo instantly, and instead work to collect your rightful ammunition. Requires VManip.
  
• NPC Kill / Frag Counter (Scoreboard) - Track how many zombies you've killed with ease, by holding TAB and looking at the scoreboard.

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CREDITS

• perfect_buddy: The original author. Made EVAC in the first place, as well as voicing every survivor you run across. Without him, this add-on wouldn't have existed.
  
• bepsy27: Remaking the original add-on's icon, used for this upload. Thanks!

ORIGINAL TESTERS

• "Green"GarnishSupraman
  
• Poke
  
• MrTeaBag
  
• Walter
  
• AmericanPsycho
  
• Mad Sherman