Survive the manual override

Celebrate your cooperative calibration success

In Ascension, Pack-a-Punch a weapon before round 8.

In Ascension, kill a space monkey with a fire trap.

In Ascension, escape on all 3 lunar landers.

Shoot at or be shot by an ally with a Pack-a-Punch crossbow and kill six zombies with the explosion.

Escape the ship with 2:15 left on the timer in Veteran.

Enter the Soviet relay station undetected.

Kill the Pentagon thief before it can steal your load-out.

Buy every weapon off the walls in a single Zombies game.

Complete 100 songs in Quickplay

Reach Level 20

Kill Santa Claus