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In Survivors mode, have all 4 players on your team Survive the game.

Play at least one match in every game mode type.

Kill an infected teammate with a headshot before they become a zombie in any mode.

3 Tyrants Killed (lifetime)

Purchase an ability.

Attempt "The Rescue" and fail

Complete the sixth mission of the U.S.S. campaign.

Complete the fifth mission of the U.S.S. campaign.