Receive a fatal bite from a zombie
Kill your first zombie
Collect all trophies
Complete the Abandoned Station mission
Kill 250 zombies
Kill 500 zombies
Complete all 5 levels
Use 100 vehicles
Disable 50 alien machines
Use a drone 25 times
Complete the Tripoli mission
Complete the Europe mission
Complete the Desert Base mission
Complete the Slums mission
Collect 20 weapons
Collect any 50 inventory items
