Collect $1,000,000

Kill 50 enemies with a melee or bayonet

Kill 150 enemies with pistols

Tie up 15 enemy combatants instead of executing them

Complete Chapter 4 on any difficulty level

Complete Chapter 3 on any difficulty level

Co-op snipe 5 enemies

Shoot 2 enemies in the head with a single bullet

Kill 3 or more enemies with a single grenade

Perform a 10,000 hit combo for the first time.

Complete Heroes' Story on Hard difficulty.

Complete Heroes' Story with all of the heroes.

Complete Heroes' Story while taking no damage in at least one battle.