Unnecessary Roughness
Use a riot shield to beat down an enemy in Single Player or Special Ops.
12/13/2009
10:25:44 AM
Rare 34.5%
Some Like it Hot
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
12/10/2009
11:39:10 AM
Rare 39.8%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
12/10/2009
10:28:22 AM
Rare 25.3%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
12/10/2009
10:13:05 AM
Common 57.6%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
12/10/2009
10:08:12 AM
Common 54.5%
Tip of the Iceberg
Use your Eagle Vision to scan a Glyph in the environment.
12/4/2009
11:47:27 AM
Common 67.8%