Spurred to Victory
Complete 20 story missions without switching to a new horse at a hitching post.
10/3/2010
7:03:30 PM
Rare 12.4%
Operative
Earn all 3 stars in at least 10 different Special Op missions.
9/26/2010
8:57:55 PM
Very Rare 5.6%
It Goes to Eleven
Earn at least 1 star in 11 different Special Op missions.
9/26/2010
8:57:50 PM
Rare 17.0%
Out of the Frying Pan...
Complete the mission in the airplane graveyard.
9/25/2010
11:08:14 PM
Rare 33.0%
Operational Asset
Earn all 3 stars in at least 5 different Special Op missions.
9/25/2010
6:44:37 PM
Very Rare 9.7%
Ten plus foot-mobiles
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
9/23/2010
11:52:53 AM
Rare 45.1%
Desperado
Kill 5 enemies in a row using 5 different weapons or attachments in Single Player or Special Ops.
9/23/2010
11:46:56 AM
Rare 21.2%
No Rest For the Wary
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
9/21/2010
10:23:51 AM
Rare 25.3%
The Power Of Friendship
In a multiplayer game, reanimate another player at least 25 times.
9/14/2010
2:08:11 PM
Rare 18.6%
Dirty Trick
Defeat an enemy by throwing an object at him while he’s already down.
8/16/2010
9:36:06 PM
Common 60.3%
In a Hail of Bullets
Kill 500 enemies with any pistol or revolver in any game mode.
8/14/2010
11:34:10 AM
Rare 10.3%
Frontiersman
Obtain Legendary rank in any Single Player Ambient Challenge.
6/28/2010
8:53:16 PM
Very Rare 7.9%
Most Wanted
Become a Public Enemy for 10 minutes and escape alive in a public Free Roam session.
6/24/2010
9:45:22 PM
Ultra Rare 2.2%