Go in dedicated_zm.cfg:

set sv_mapRotation "loadmod \"mods/nazi_zombie_remastered\" map nazi_zombie_prototype loadmod \"mods/nazi_zombie_remastered_dlc1\" map nazi_zombie_asylum loadmod \"mods/nazi_zombie_remastered_dlc2\" map nazi_zombie_sumpf loadmod \"mods/nazi_zombie_remastered_dlc3\" map nazi_zombie_factory"

And in T4_zm_server.sh:
MOD="mods/nazi_zombie_remastered mods/nazi_zombie_remastered_dlc1 mods/nazi_zombie_remastered_dlc2 mods/nazi_zombie_remastered_dlc3"

My NAT type is "Open"

Glad you figured it out

That or explicitly telling the game not to use its own stats for the mod.

Nope, you got to wait.

I found a good work around is to use the steam overlay to make a steam note, and have it like:

Team Deathmatch - connect 192.XX.XX.XX:XX

you can just copy out the connect and paste into the console and hit enter. bonus of this method is it also works in a game!

https://forum.plutonium.pw/topic/34713/how-to-rotate-custom-maps-in-t4-zm/5

thanks you

Subbrn first be aware of this

Custom maps are not written with hot-joining in mind, because ZM dedicated servers didn't exist before Plutonium
This means most of the custom maps code are not written with this in mind and therefore they will have bugs on dedicated servers that cannot be fixed without rewriting their code

Now, the issue might be that you didn't update your CFG (map rotation) accordingly.
The map name has to be the result of the mapname dvar in the console, which can also be the correct .ff file's name in the map's folder

https://plutonium.pw/docs/modding/t4/disabling-perks-gsc/

You will need to find an alternative download link for _class.gsc or dump it from the game.

What's your current setup?
You can just use a free software from your own machine/VPS

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