Hey, it's been a while since I've played custom zombies but I must say this is a great map so far!
I didn't manage to complete it but the gameplay is really entertaining, keep up the great work!
Also I'm sorry if this shouldn't be in a discussion thread but here is my first playthrough and impressions: https://youtu.be/2pjzt4yY8wo

The only thing I would change is the panzer's health, slightly!