Mission... accomplished?
Finish the Campaign on any difficulty (all Intervals complete)
6/26/2011
8:06:32 PM
Rare 27.4%
With Great Power Comes Greater Power
Unlock and purchase all powers.
6/23/2011
3:05:53 AM
Very Rare 8.2%
That's a lot of Zeros
Attain a total of 250,000 points through challenges.
6/21/2011
10:40:32 PM
Rare 31.6%
State-of-the-Art. Bang, Bang!
Kill 10 enemies in a row with Sniper Rifle headshots
6/21/2011
7:45:16 PM
Ultra Rare 2.5%
A Precursor
In the Poker Room of Prison, kill all 3 enemies with headshots before slo-mo ends
6/21/2011
7:11:09 PM
Very Rare 9.2%