Call of Duty: WW2 Zombies - How To Unlock The Mystery Box

Get random weaponry in Groeten Haus, the unlockable survival map in Nazi Zombies, with this quick (and completely secret) method.

Mystery Box, Call of Duty Wiki

Mystery Box, Nazi Zombies Wiki

Mystery Box - Call of Duty: Black Ops 2 Guide - IGN

Correct requirements for each character challenge on WWII (with tips, restrictions and other notes) : r/CODZombies

WW2 ZOMBIES SECRET EASTER EGG ROOM FOUND!! UNLOCK GROESTON HAUS MYSTERY BOX GUIDE TUTORIAL

The Shadowed Throne Walkthrough - Call of Duty: WWII Guide - IGN

COD WWII: Things You Never Knew You Could Do

How to Unlock Mystery Box Room in Cod Ww2 Zombies Easter Egg

Mystery Box, Call of Duty Wiki

Mystery Box

Mystery Box, Nazi Zombies Plus Wiki

COD WWII: Things You Never Knew You Could Do

Steam Community :: Guide :: How to Unlock Secret Playable Characters

COD WW2 - How to Unlock Mystery Box in Prologue / Groesten Haus