Kill 250 zombies using blunt melee weapons.

Create weapons to rival the gods of fire or thunder.

Kill 50 zombies using a vehicle.

Multi-kill -- 2 enemies with 1 Stalker-Pattern bolter shot.

Fight your way to the crashed Rok.

Reunite with your Space Marine brothers.

Kill 25 zombies with your bare fists.

Kill a zombie with 10 different melee weapons.

Reached Driver Level 5

Kill an Infected with a grenade blast.

Create a customized weapon.

Completed JR's Grass Roots event

Complete the "Kill Switch" Special Ops mission on any difficulty.