Looks like an huge mission and can't wait to play it. :) Unfortunately it doesn't run properly on my rented dedicated server and I thought it's better to start a discussion thread instead of a comment as it is a bit more text.

Issue:
When I begin the mission as logged in admin (choose 0 % in params), I'm stuck at the airfield after start (which is the start if you choose None in the params I assume). Doesn't matter which progress I chose, it's alway the airfield. Strangely, the first time it worked and very seldom it works randomly. But it's so seldom and therefore not very enjoyable.

I did:

- Double check all mods are running on server and my pc. (It worked sometimes so I don't think that's the issue)
- Tried #restart, #reassign, #missions, setting the 0 % param in the server.cfg and everything in combination with the whiteboard on the airfield

All works well when I just host locally. But I'd would like to play on the dedi for performance reasons. :/

I did maybe find something in the client RPT:

https://ghostbin.co/paste/fovzdq2

Further below are several errors in some SQF's while the syncing feature happened

Edit: I figured as much that the PubMissionProgress variable can't be read/isn't defined. It's both in the client and server logs. It seems that there is a difference between local and dedicated hosting and the dedicated server can't initialize the variable properly as soon the players go back to the lobby. I believe the variable is either at the wrong place in the initialization order or the vars in the server profile get somewhat corrupt. It could also be a specific issue for linux servers.

Edit2: So I tested it with a Linux dedicated server and a Windows local dedicated server. Both don't work. It only works when starting a MP session ingame, at least for me. In all cases the PubMissionProgress variable was not defined which led to errors and me spawning at the airfield.