Kill 7 enemies with silent takedowns

Kill 100 enemies with a headshot

Kill 40 enemies with science weapons

Ashley or Chris opened the trap door and let the monster in

Complete Through Mud and Blood

Complete 10 challenges in the campaign

Perform a melee kill on 10 enemies anywhere in the campaign

Complete Avanti Savoia!

Mike allowed Emily to stay in the basement

Sam or Ashley attacked the psycho with a weapon

Mike cut off his fingers to free himself from the bear trap

Create weapons to rival the gods of fire or thunder.

Kill a zombie with 10 different melee weapons.