HOW TO UNLOCK EVERY ???/HIDDEN CHARACTER WITHIN NAZI ZOMBIES

[Angela]

These are the hidden steps within Nazi zombies to unlock all of the hidden characters within the Final Reich.

Reddit Link: https://www.reddit.com/r/CODZombies/comments/7ayvcg/wwll_zombies_how_to_unlock_every_character_in_the/?st=j9n8urr7&sh=501ec998

HUNTER:
(You need to kill the Trasure Zombie, usually spawns in on high rounds)
Obatined Part A of the Zombie Hunter set.
Obtained Part B of the Zombie Hunter set.
Obtained Part C of the Zombie Hunter set.
Obtained Part D of the Zombie Hunter set.
Obtained Part E of the Zombie Hunter set.

MOUNTAINEER:
Survive 20 waves without opening any doors within Final Reich.
Survive 20 waves without opening any doors AND going down within Final Reich.
Survive 25 waves in Prologue.
Survive 25 waves in Prologue without going down.
Survive 25 waves in Prologue without unlocking the secret room to the Mystery Box.

SURVIVALIST:
Survive 30 waves without going down of Final Reich.
Survive 30 waves without using any Perk Machines/Blitz of Final Reich.
Survive 30 waves without turning on the power in Final Reich.
Survive 30 waves with only starting weapons in Final Reich.
Survive 30 waves with only two uses of the Mystery Box within Final Reich.

B.A.T. AGENT:
Kill a Treasure Zombie for the First Time on Final Reich.
Defeat a Panzermorder for the First Time on Final Reich.
Survive 25 waves on Final Reich.
Unlock the weapon Upgrade Station on Final Reich.
Assemble the Wonder Weapon Tesla Gun by wave 6 on Final Reich

B.A.T. ELITE:
(These are for the Hardcore Easter Egg)
Save Klaus by yourself/solo.
Save Klaus by wave 16.
Save Klaus in less than 75 minutes.
Save Klaus without going down.
Save without using any specials, mods, or consumables.
(If someone get's this character, you my friend are a god!)

ASSASIN:
(These are for the casual easter egg ending, or just defeating the big boss)
Defeat the Panzermorder by wave 12.
Defeat the Panzermorder without upgrading any weapons.
Defeat the Panzermorder without any Perks/Blitz.
Defeat the Panzermorder without going down.
Defeat the Panzermorder without any Specials, Mods, or Consumables.

[Sandy]

mountineer seems almost impossble

[Angela]

Not if you have other people with you, it's actually really easy tbh, the hardest one by far is the B.A.T. ELITE