Glad it worked for you Farber, will have a go later on ATAG. Hope it does the trick for me too!
If SSAO works on ATAG then it poses the question why isn't it needed on the Kampverband server No1?
I can only think that either it's an Objects issue or you need SSAO checked if a server has 'clouds' enabled.
I had the same CTD on Kampverband No 2 server and this also has clouds enabled too....
