Finish 100 games in PvE
Open and buy all perks in game
Heal 30 teammates with health lower than 20% with health packs or stim pistol
Use masking grenade on 3 teammates with zombies near
Open and buy final versions of all weapons
Open and buy all perks in one specialization
Walk into Gasbag's cloud 100 times
Hit 10 zombies with one tazer shot
Finish all episodes on insane or extreme difficulty
Defuse 10 mines
Open 15 rooms or containers with breaching charge
Build 100 defences
Rescue 30 incapacitated teammates
Kill Bull during his charge
Mark special zombies 50 times
Kill 20 lying zombies before they get up
Finish all episodes on any difficulty
Kill 10,000 zombies
Finish "Moscow" episode on any difficulty
Capture 15 turrets
Finish any level without using healing equipment
Finish any level without dealing friendly damage
Finish "Jerusalem" episode on any difficulty
Open and buy final version of any weapon
Finish "New York" episode on any difficulty
Burn 10 zombies with one gasoline puddle
Finish any level using just pistol
Kill 10 zombies with gas cylinder explosion
Finish any level with full team
Kill Lurker midair
Finish 25 PvP matches in any mode
Dispense 10 supply bags
Capture the point and hold it until the end of the match in "Swarm Domination" mode
Finish PvP match with highest score in any mode
Gather 200 resources during single match in scavenge raid mode
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