In Moon, acquire 3 pack-a-punched weapons at the same time.

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

Access the terminal and battle the forces of the Cosmic Silverback in Dead Ops Arcade.

Complete the campaign on Hardened or Veteran difficulty.

Use no more than 6 TOW guided missiles to destroy the tanks in the defense of Khe Sanh.

In Origins, use Zombie Blood to revive three players and activate a generator in one game.

In Origins, free yourself and another from the Panzer Soldat’s claw in one game.

In Origins, complete all 4 Challenges in one game.

In Origins, activate all generators without allowing one to stop.

In Buried, make a candy delivery.

In Buried, be their pawn.

In Buried, Pack-a-Punch a weapon during round 1 with no one using the bank or Weapon Locker.

Complete all future levels in veteran.