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Warning! This article contains spoilers for an upcoming or recently released product.
Vivian Harris (also known as B.A.T. Agent) is an unlockable charcter within Call of Duty: WWII Zombies. Like the other unlockable character, she can be unlocked by completing a full challenge set in the map The Final Reich, in this case being the "On Assignment" challenge set.
- Seasoned - Survive Wave 25 in The Final Reich. (Survive).
- See You at the Party - Defeat the Panzermörder in The Final Reich. (Rest in pieces.)
- Cooking with Gas - Unlock the Ubersprengen in The Final Reich. (Power up.)
- Lightning Fast - Assemble the Tesla Gun by Wave 6 in The Final Reich. ("Oh, I know this part!")
- Did You See That...? - Kill a Treasure Zombie in The Final Reich. ("After that... thing!")