Defeat 50 enemies with hand-to-hand combat.

Complete DNA Sequence 1.

Defeat 3 Majini at once by setting oil canisters on fire.

Establish a beachhead at Peleliu Island on any difficulty. (Solo only)

Eliminate a creature.

Complete the Firehouse training level.

Defeat 100 enemies.

Defeat the Brute.

Collect all of the World Collectables within one level.

Took down 2 enemies with 1 bullet in Night Shift

Become a master of using Zankoku.

Found the nuke

Beat the game on Normal difficulty.