Complete Chapter 7 on any difficulty setting

Spend 200,000 credits at the store

Kill the Leviathan

Complete Chapter 5 on any difficulty setting

Complete Chapter 4 on any difficulty setting

Kill a Brute

Complete Chapter 2 on any difficulty setting

Kill 30 enemies with the Plasma Cutter

Dismember 20 Limbs

Kill no more than one zombie with a nuke. (Map Pack 2 only)

Obtain a medal for every cell in Head Rush.

Obtain a medal for every cell in Frenzy.

Win any race with Pilot Assist on.