Got a kill with the following weapons in a single life: Assault Rifle, Jet, Tank

Got one kill with the Gunship

Destroyed the Gunship

Complete the game.

Kill 75 enemies with the rifle.

Purchase all skills in one category.

Find 25% of GPS caches.

Collect 25% of all relics.

Collect 5000 pieces of salvage.

Kill 40 enemies with the shotgun.

Kill 35 enemies with the pistol.

Force an enemy to drop dynamite that kills two people when exploding.

Perform 15 finishers.