Collect 5000 pieces of salvage.

Purchase all skills in one category.

Complete 'The Black Rider'.

Loot 200 enemies.

Perform 15 finishers.

Kill FeeFee the crab.

Find 25% of all documents.

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

Kill 50 enemies with the bow.

Finish the game in Normal Mode

Defeat ten enemies in a row, alternating hand-to-hand combat and gunplay

Defeat 30 enemies with the M9