Kill 10 zombies
Kill 50 zombies
Kill 100 zombies
Kill 250 zombies
Kill 500 zombies
Kill 1000 zombies
Kill 5000 zombies
Kill 10000 zombies
Complete Suburb - Day level in Horde mode
Complete Alley - Night level in Horde mode
Complete Suburb - Sunset level in Horde mode
Complete Police Station level in Horde mode
Complete Alley - Day level in Horde mode
Complete Suburb - Night level in Horde mode
Complete all levels in Horde mode
Perform 5 headshots
Perform 25 headshots
Perform 75 headshots
Perform 150 headshots
Perform 500 headshots
Perform 1000 headshots
Win one game
Win 10 games
Win 100 games
Win 250 games
Reach level 2
Reach level 5
Reach level 10
Deal 10K damage
Deal 100K damage