Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
5/8/2011
2:28:03 PM
Rare 31.6%
Just Browsing?
In single player Story mode, spend 30 minutes or more in the Intex Terminal menus.
4/30/2011
9:06:17 PM
Rare 32.4%
Elite Force
Without the player taking damage kill 50 aliens in single player.
4/30/2011
8:41:17 PM
Rare 43.5%
Shocking
Stun 5 aliens with one stun grenade (or witness another player doing this).
4/28/2011
2:29:53 AM
Rare 35.6%
Team Building
Complete all test chambers in the Team Building co-op course
4/22/2011
4:11:25 PM
Rare 46.8%
Start Spreading the News
Finish the single player campaign on any difficulty
4/2/2011
3:18:01 AM
Rare 28.9%
Crowd Pleaser
A level you published was played by 50 or more people
3/25/2011
6:19:15 PM
Ultra Rare 2.9%