First Investigation
Not unlocked yetComplete one investigation (solo or coop)
The Amateur Hunter
Not unlocked yetKill 15 zombie in one investigation
Gun and Gun!
Not unlocked yetObtain 3 weapon in one investigation
Beginner Headhunter
Not unlocked yetPerform 25x head shots in one investigation
Crazy Game!
Not unlocked yetEarn "Crazy" grade or above in final result
Pistol Master
Not unlocked yetKill 50 zombies using pistol in one investigation
The Privateer
Not unlocked yetKill 50 zombies using rifle in one investigation
Soul Blaster
Not unlocked yetKill 50 zombies using shotgun in one investigation
Bucket of Hands
Not unlocked yetKill 100 zombies in one investigation
Homerun!
Not unlocked yetKill 15 enemies using baseball bat in one investigation
Sorry Mate!
Not unlocked yetKill your own partner in one investigation
The First Rescue
Not unlocked yetFinish one rescue mode (solo or coop)
He's Gone...
Not unlocked yetFailed to protect Prof. Heinrich
Private Guard
Not unlocked yetKill 100 zombies in one rescue mode
You And I
Not unlocked yetComplete one versus mode
Who's Dominating?
Not unlocked yetReach 8 kills in one versus mode
Zombie and Human
Not unlocked yetGetting killed by zombie 4 times in versus mode