Ensure your squad escapes safely from Cuba.

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

In Call of the Dead, kill 10 zombies with one Scavenger shot from over 100 feet away.

In Call of the Dead, make a zombie explode using the V-R11.

In Call of the Dead, send the crew to Paradise in solo or co-op.

In Shangri-La, acquire the focusing stone.

In Moon, purchase every perk in one game.

In Ascension, kill a space monkey with a fire trap.

In Ascension, escape on all 3 lunar landers.

In Shangri-La, kill a Shrieker zombie while blinded by it.

Complete game using Truth Door.

Kill the Pighead.