Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops.
11/11/2009
8:08:55 PM
Rare 34.5%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
11/11/2009
7:43:36 PM
Rare 39.8%
Colonel Sanderson
Kill 7 chickens in under 10 seconds in 'The Hornet's Nest'.
11/11/2009
7:12:32 PM
Very Rare 6.8%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
11/11/2009
7:02:31 PM
Common 57.6%
Anniversary of the Dead
Complete the Final Day, in either Single or Multiplayer, and finish the game
11/11/2009
6:48:50 PM
Rare 22.8%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
11/10/2009
3:05:06 PM
Common 54.5%
Hotter than Hell
Complete the final day of the "7 Days of Hell" unlockable mode
11/9/2009
12:42:06 AM
Rare 11.6%
Gas Powered
Complete an entire arena, getting every kill with the Chainsaw
11/6/2009
5:48:41 PM
Common 63.0%
Tour of the City
Complete each arena at least once in the same game in any game mode
11/6/2009
5:34:09 PM
Common 74.4%
Gun Shop
Kill at least one zombie with each weapon type in any game mode
11/6/2009
2:49:20 PM
Rare 40.4%
Interior Decorator
Kill 25 zombies in any game mode using environmental hazards
11/6/2009
2:29:57 PM
Common 80.1%
More the Merrier
Kill 10 or more zombies at the same time in any game mode
11/6/2009
2:28:05 PM
Common 81.1%
Environmental Awareness
Kill a zombie using an environmental hazard in any game mode
11/6/2009
2:18:43 PM
Common 91.8%
