Multiplayer CTD Server/Object issue?

[SEE]

I saw your chat then you disappeared, about 25 minutes later I went through a period of heavy stutters, mini freezes, etc and expected a CTD. It didn't happen but performance wasn't as good afterwards.

I lowered some video settings in case my CPU was bottlenecking and got a CTD about 25 minutes into the mission. Annoying, because it seems so promising.

I am going to try the Kampverband13 No 1 server again with my normal settings as that seems to work fine, hopefully there will be a few players on it.