Socialite
Complete a level online with 3 other players who are not on your friends list
12/26/2008
8:21:04 PM
Rare 18.0%
Dr Frankenstein
Create a living creature with at least 2 eyes, 2 legs or wheels, and a brain
12/25/2008
6:19:28 PM
Rare 15.3%
They Go "Boom"
Get 30 kills with the Magnum secondary fire in the single player Campaign.
12/24/2008
10:14:53 PM
Rare 17.4%
Explosives Expert
Get 150 kills with the Carbine 40mm, LAARK, or frag grenade in the single player Campaign.
12/24/2008
10:05:07 PM
Rare 18.7%
R.I.P. Jordan Shepherd
Defeat Daedalus; complete the single player Campaign.
12/24/2008
3:54:13 PM
Rare 33.8%
Pincushion
Get 50 kills with the Hedgehog in the single player Campaign.
12/23/2008
6:00:59 PM
Very Rare 8.5%