Gave Claptrap a high five

Slam 10 zombies at once in Outbreak.

Reach round 15 in Nazi Zombies without getting revived. (Map Pack 2 only)

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

Completed the mission "Bright Lights, Flying City"

Completed the mission "Rising Action"

Purchased 5 items from the black market

Unlocked 10 customization items

Killed 100 enemies with the Sabre turret

Got an item from Michael Mamaril

Completed the mission "Hunting The Firehawk"

Completed the mission "Plan B"