I Admire its Purity
Complete Alien Campaign on Hard difficulty setting
11/28/2010
8:28:14 PM
Ultra Rare 3.2%
Reluctant Hero
At the beginning of the episode, refuse to join Gabe and Tycho 5 times.
11/27/2010
3:48:22 PM
Rare 34.1%
Easy Rhino
In Dead Ops Arcade, use a Speed Boost to blast through 20 or more enemies at one time.
11/27/2010
1:31:53 PM
Ultra Rare 1.3%
