Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
12/28/2009
4:01:34 PM
Rare 45.1%
Three-some
Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.
12/24/2009
3:16:12 PM
Common 54.5%
Two Birds with One Stone
Kill 2 enemies with a single bullet in Single Player or Special Ops.
12/24/2009
2:15:08 PM
Common 57.6%
Underdog
Win an Online Head to Head Ranked match using a weaker team than your opponent
12/19/2009
3:20:47 PM
Rare 17.0%
Keep It Cool
Achieve a 'cool' ranking on every line of a 'normal' length song
11/20/2009
11:51:52 PM
Ultra Rare 2.9%
Fashion Sense
Choose a costume for your sackperson with at least one item on your head, at least one item on your body, and a material
11/17/2009
11:22:25 AM
Common 86.3%