@dixon13 - We have after that implemented the Alive.cfg, still the same error occours! :(
https://forums.bistudio.com/topic/182971-alive-takistan-natofor-master-antonio-version/ - This is the mission file we're using. The problem seems to be random, sometimes we can play for hours, sometimes only few minutes.
I really hope you can help, that would safe my day! :)