Now we have tested this campaign a little.
The main problem is, that map 1 & 2 activate cheats on the server.
Therefore we won't install the campaign at the moment.
The campaign author said that the final version may not activate cheats anymore.
So maybe we can install a later version in the future.
And the FPS in some corners of some maps is dropping.
Also the client crashed for some of us sometimes (maybe because of huge maps).
Otherwise it was a funny campaign and we learned a lot about witches.