Discover all of the collectibles in the Campaign.

In Campaign, kill 5 enemies with 5 different guns in under 30 seconds.

Kill 5 enemies using one burst of Unstoppable Force.

Complete all Advanced Co-Op missions.

Change each item of clothing individually on a male or female avatar

Visit a friend’s apartment

Own 3 purchased or rewarded portable items

Collect all the Trophies

Earn three Stars in 'Denied Area'.

Kill 500 enemies with a mounted weapon in any game mode.

Attain Rank 5 in all Undead Nightmare Challenges.

Find and kill a chupacabra.

Complete "Mother Superior Blues" Survivor Mission.