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