More the Merrier
Kill 10 or more zombies at the same time in any game mode
9/5/2010
11:45:37 PM
Common 81.1%
Tour of the City
Complete each arena at least once in the same game in any game mode
9/5/2010
12:00:25 PM
Common 74.4%
Interior Decorator
Kill 25 zombies in any game mode using environmental hazards
9/5/2010
11:53:47 AM
Common 80.1%
Environmental Awareness
Kill a zombie using an environmental hazard in any game mode
9/5/2010
11:39:42 AM
Common 91.8%
Complete: Nurse's Office
Complete Mission on any difficulty: Nurse's Office
8/28/2010
10:46:19 PM
Rare 40.2%
Historian
Collect 50% of the journal intelligence found throughout the game.
8/28/2010
10:23:43 PM
Rare 38.3%
Paparazzi
Collect 25% of the journal intelligence found throughout the game.
8/26/2010
11:11:54 PM
Common 56.4%
