Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
12/25/2009
7:43:46 PM
Common 54.5%
Malpractice Needs More Practice
Survive the onslaught from the deformed Joker henchman
12/25/2009
5:57:33 PM
Common 87.1%
Leave No Man Behind
Rescue the guards and henchman from the Joker toxin in Decontamination
12/25/2009
5:51:24 PM
Common 84.0%
The Sun Sets
Complete 'Breaking Point' on Veteran difficulty. (Solo only)
12/9/2009
12:38:23 AM
Ultra Rare 2.6%
No Return
Complete 'Ring of Steel' on Veteran difficulty. (Solo only)
11/27/2009
8:51:27 PM
Ultra Rare 3.0%
The Hammer Strikes
Complete 'Their Land, Their Blood' on Veteran difficulty. (Solo only)
11/26/2009
11:25:11 PM
Ultra Rare 4.2%
Ruthless
Kill 15 enemies while mounted on a tank in 'Ring of Steel'.
11/25/2009
4:49:03 PM
Ultra Rare 3.6%
Kamikaze
Complete a level on Regular difficulty or higher using only melee or grenades. (Solo only)
11/24/2009
5:36:42 PM
Ultra Rare 2.9%
The Professional
Shoot all of Amsel's henchmen, including their attack dog, without reloading. (Solo only)
11/23/2009
6:28:12 AM
Ultra Rare 4.1%
Blue Ribbon
Complete a 4-player Competitive Co-Op match in 1st place. (Online co-op Only)
11/22/2009
11:36:16 PM
Very Rare 5.2%
Get Your Left Foot Wet
Complete a match in Campaign Co-Op mode. (Online co-op only)
11/21/2009
5:41:13 PM
Rare 12.6%
Get Your Right Foot Wet
Complete a match in Competitive Co-Op mode. (Online co-op only)
11/18/2009
11:33:14 PM
Rare 16.8%
Throw a Six and a Half
On Hardened or Veteran difficulty, complete a level without dying. (Solo only)
11/16/2009
9:19:42 PM
Very Rare 5.6%
One Bad Gato
Complete 'Blackcats' on Veteran difficulty. (Solo only)
11/16/2009
9:19:35 PM
Ultra Rare 3.9%