Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
11/14/2009
12:01:17 PM
Common 57.6%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
11/14/2009
11:39:09 AM
Common 54.5%
Untouchable
Finish any chapter, except for VI and VIII, without getting severely wounded.
11/10/2009
4:43:58 PM
Rare 30.2%
Malpractice Needs More Practice
Survive the onslaught from the deformed Joker henchman
10/23/2009
4:16:24 PM
Common 87.1%
Leave No Man Behind
Rescue the guards and henchman from the Joker toxin in Decontamination
10/23/2009
4:09:35 PM
Common 84.0%
Frag Steal
Kill all enemies in a single Cooperative Concentration Mode.
10/11/2009
7:31:20 AM
Rare 38.9%
Safety First - Shoot off 100 helmets
Shoot off 100 Helghast helmets during battle
10/3/2009
6:39:07 AM
Rare 35.9%
Barrel of Death - Kill 3 Helghast using your environment
Kill 3 Helghast at once using the surrounding environment
10/3/2009
6:21:35 AM
Rare 25.3%
Killing Spree - Kill 5 Helghast in 15 seconds
Kill 5 Helghast in 15 seconds whilst on foot and maintaining at least 85% health
10/3/2009
6:21:30 AM
Rare 39.3%
Defensive Fighter - Kill 30 Helghast with an emplaced weapon
Kill 30 Helghast using the StA3 fixed gun emplacement
10/2/2009
8:06:17 AM
Rare 45.1%
Giantslayer - Kill the Heavy within 1 minute
Kill the Blood Meridian heavy in under 1 minute
10/2/2009
7:12:40 AM
Rare 32.3%