Single Player: Kill at least 3 enemies with a single grenade

Complete In at the Deep End

Complete "On a Pale Horse".

In Ascension, kill at least 5 zombies with 1 Gersh Device.

Find and kill a chupacabra.

Make it to wave 15 in Undead Overrun Gametype in Multiplayer.

Escape the Facility

Survive the Eye Poke Machine

Collect 100 logs

Snare the Shard with the Ishimura

Kill a Stalker with the Seeker Rifle while in Zoom Mode

Destroy the Tripod Nest