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

Defeat 20 enemies with the Pistole

Defeat 20 enemies by shooting from the hip (without aiming with L1)

Defeat five enemies in a row with headshots

Find 30 treasures

Defeat 20 enemies with headshots

Find the Strange Relic

Defeat 50 enemies with hand-to-hand combat

Activate the Fly Trap. (Map Pack 3 only)

Find one treasure

Kill three enemies with one explosion five times

Find 55 treasures

Find 45 treasures