Kill 3 enemies with a single round.

Defeat ten enemies in a row with hand-to-hand combat

Activate the Fly Trap. (Map Pack 3 only)

Complete "Remember My Family".

Complete Twin Rocks, Pike's Basin, and Gaptooth Breach Hideouts in Single Player.

Complete 'Semper Fi' on Veteran difficulty. (Solo only)

Purchase a rare weapon from a gunsmith.

Acquire Atlas Quake

Complete "At Home with Dutch".

Complete "An Appointed Time".

Win any race with Pilot Assist on.

Complete any one stunt from the stunt list.

Good guys feed the needy.