Perkaholics Anonymous!
Survive until round 20 without buying a single Perk. (Map Pack 3 only)
7/30/2010
3:33:11 AM
Ultra Rare 4.7%
Spurred to Victory
Complete 20 story missions without switching to a new horse at a hitching post.
7/25/2010
7:31:40 PM
Rare 12.4%
Friends in High Places
Use a pardon letter with more than $5000 bounty in Single Player.
7/23/2010
10:52:03 PM
Ultra Rare 2.1%
Look Ma Two Hands
Kill 10 enemies in a row using akimbo weapons in Single Player or Special Ops.
7/17/2010
12:02:42 AM
Rare 12.6%
Pit Boss
Run The Pit in 'S.S.D.D' and finish with a final time under 30 seconds.
7/13/2010
3:51:07 AM
Ultra Rare 2.8%
Ghost
Plant the C4 in 'Cliffhanger' without alerting or injuring anyone in the blizzard.
7/11/2010
11:55:49 PM
Ultra Rare 3.1%
First Day of School
Complete 'S.S.D.D' and 'Team Player' on Veteran Difficulty.
7/11/2010
11:46:27 PM
Very Rare 7.1%
The Price of War
Complete the single player campaign on Hardened or Veteran Difficulty.
6/24/2010
10:18:39 PM
Very Rare 5.8%
The Gunslinger
Score a headshot on any enemy using Expert targeting mode.
6/21/2010
3:24:56 AM
Very Rare 6.6%
Frontiersman
Obtain Legendary rank in any Single Player Ambient Challenge.
6/18/2010
3:55:02 AM
Very Rare 7.9%
On the Trail of de Vaca
Uncover every location on the map in Single Player.
6/18/2010
3:40:49 AM
Very Rare 6.6%
The Benefits of Civilization
Complete "And the Truth Will Set You Free".
6/18/2010
1:39:08 AM
Rare 22.6%
Evil Spirits
Complete Tumbleweed and Tesoro Azul Hideouts in Single Player.
6/15/2010
8:26:29 PM
Rare 13.9%