Bring the Heat
Take down an enemy from 50 meters away with a headshot using the thermal scope.
10/25/2012
12:12:30 AM
Very Rare 5.7%
Sneaking Around
Get through the aircraft carrier's bridge area without being noticed.
10/21/2012
3:27:40 PM
Ultra Rare 2.9%
B.O.W.s Are Ugly
Defeat 100 enemies that have come out of a chrysalid.
10/10/2012
12:37:55 AM
Rare 13.2%
Down, Not Out
Defeat an enemy while dying, then recover without any help.
10/8/2012
2:01:10 AM
Rare 38.2%