Untouchable
Finish any chapter, except for VI and VIII, without getting severely wounded.
10/22/2010
6:45:18 PM
Rare 30.2%
Sharpshooter Distraction
On chapter IV, playing as Ray, kill sharpshooters without Thomas' help.
10/22/2010
6:13:23 PM
Rare 22.5%
Mayhem
On chapter III, kill 20 armed enemies while riding the stagecoach.
10/21/2010
10:21:23 PM
Rare 24.1%
Out of the Frying Pan...
Complete the mission in the airplane graveyard.
11/21/2009
6:42:50 PM
Rare 33.0%
Desperado
Kill 5 enemies in a row using 5 different weapons or attachments in Single Player or Special Ops.
11/21/2009
6:34:57 PM
Rare 21.2%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
11/18/2009
8:16:55 PM
Rare 39.8%
The Harder They Fall
Kill 2 rappelling enemies in a row before they land on their feet in Single Player or Special Ops.
11/18/2009
6:25:29 PM
Rare 30.0%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
11/16/2009
7:10:22 PM
Rare 45.1%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
11/14/2009
9:27:55 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
8:52:16 PM
Common 54.5%