Master Batter
Complete the entire game in a single game session without using a continue.
7/7/2010
3:16:22 PM
Ultra Rare 2.9%
Veteran Commander
Complete the Game - Become a commander on Hard difficulty
6/19/2010
2:01:48 PM
Rare 16.1%
Frontiersman
Obtain Legendary rank in any Single Player Ambient Challenge.
5/29/2010
7:02:57 PM
Very Rare 7.9%