The Sampler Platter
Kill a Necromorph with every Weapon in the game (single player only).
3/8/2011
12:06:58 PM
Very Rare 8.7%
Sally Likes Blood
Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.
3/5/2011
3:21:28 AM
Rare 34.9%
Insert Coin
Access the terminal and battle the forces of the Cosmic Silverback in Dead Ops Arcade.
3/5/2011
3:20:44 AM
Rare 36.9%
Needle in a Haystack
Kill your target while hidden in a hay bale (Multiplayer Only).
1/26/2011
6:54:18 AM
Very Rare 7.3%