Frontiersman
Obtain Legendary rank in any Single Player Ambient Challenge.
1/31/2011
12:58:20 PM
Very Rare 7.9%
Evil Spirits
Complete Tumbleweed and Tesoro Azul Hideouts in Single Player.
1/31/2011
12:14:53 PM
Rare 13.9%
Manifest Destiny
Kill the last buffalo in the Great Plains in Single Player.
1/30/2011
8:41:50 PM
Ultra Rare 4.2%
Raining Pain
Rack up a body count of 20 NVA using air support in Hue City.
11/27/2010
12:22:28 PM
Rare 32.6%
Vehicular Slaughter
Destroy all enemies on vehicles during the prison break.
11/26/2010
9:56:35 PM
Rare 18.5%
