Partial Perfectionist
Dominate any 4 chapters of Quest (Earn all the Power Stars from any 4 chapters of Quest)
3/4/2011
5:30:43 PM
Very Rare 8.8%
Pseudo Perfectionist
Dominate any 2 chapters of Quest (Earn all the Power Stars from any 2 chapters of Quest)
2/24/2011
5:29:37 PM
Rare 12.5%
Bare-knuckle Expert
Defeat ten enemies in a row with hand-to-hand combat
2/20/2011
4:05:20 PM
Rare 22.5%
Drive By
Kill 20 enemies in a row while driving a vehicle in Single Player or Special Ops.
2/9/2011
12:59:05 AM
Very Rare 8.1%
Out of the Frying Pan...
Complete the mission in the airplane graveyard.
2/9/2011
12:29:21 AM
Rare 33.0%
On the Trail of de Vaca
Uncover every location on the map in Single Player.
2/7/2011
9:19:47 PM
Very Rare 6.6%
Man of Honor / Chivalry's Dead
Attain highest Fame rank and either highest Honor rank or lowest Honor rank.
1/31/2011
2:37:57 PM
Very Rare 8.1%
Frontiersman
Obtain Legendary rank in any Single Player Ambient Challenge.
1/28/2011
12:10:21 PM
Very Rare 7.9%