Question: how to unlock secret characters in ww2 zombies?
Answer: B.A.T. Agent: Kill a Treasurer Zombie. ... , Survivalist: Get to Round 30 without purchasing perks. ... , Hunter: Obtained Zombie Hunter part A — random Treasurer Zombie drop. ... , Mountaineer: Survived 20 rounds without opening doors. ... , B.A.T. Elite: ... , Assassin: Defeat the Panzermorder by Round 12.