Defeat 30 enemies with the M9

Defeat five Riot Shield enemies by running over their shield

Defeat 30 enemies with the KAL 7

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

Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.

Kill a zombie with 10 different melee weapons.

Defeat 50 enemies with hand-to-hand combat

Find one treasure

Solve 5% of riddler challenges

Defeat an enemy or civilian by stepping in water.

Crack the code.

Find one treasure