Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
2/9/2011
7:40:19 AM
Common 54.5%
Knock-knock
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.
2/9/2011
7:01:04 AM
Rare 15.2%
Adrenaline Rush
Manually trigger AR Mode and destroy three enemy robots in a row.
1/15/2011
3:53:33 PM
Rare 28.3%
Death Wish
Destroy three enemy robots while in damage-triggered AR Mode.
1/10/2011
7:03:00 PM
Rare 47.9%
Piece by Piece
Destroy the arms, head, and back of an KNRB-0 Argus robot.
1/10/2011
6:34:01 PM
Rare 31.9%
That Ended Up Working Out Nicely
After taking control of the enemy transport in Act 2-2, do not let a single enemy escape.
1/10/2011
5:56:29 PM
Common 51.9%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
1/9/2011
11:21:09 AM
Rare 25.3%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
1/9/2011
9:34:48 AM
Rare 39.8%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
1/9/2011
9:29:31 AM
Common 57.6%
