Zombie pants and chest armor: Successfully complete 100 total rounds in the four Tier 3 maps. Zombie Exo and boots: Successfully complete 75 total rounds in the four Tier 2 maps. Zombie gloves and kneepads: Successfully complete 50 total rounds in the four Tier 1 maps.
Successfully complete the indicated task in Exo Survival mode to unlock the corresponding zombie gear for use in Multiplayer mode: