Complete 'Little Resistance' on Veteran difficulty. (Solo only)

Have all four perks simultaneously active in a game of Nazi Zombies. (Map Pack 2 only)

Kill 200 zombies in a single game. (Map Pack 2 only)

Kill 10 enemies while the lights are out in the subway in 'Eviction'.

Reached Level 20 with Good Karma

Completed "Finding the Garden of Eden"

Completed "Rescue from Paradise"

Completed "Tranquility Lane"

Complete a 4-player Competitive Co-Op match in 1st place. (Online co-op Only)

Complete a match in Competitive Co-Op mode. (Online co-op only)

Reached Level 14 with Good Karma

Completed "The Power of the Atom"

Completed "Reilly's Rangers"