EF all patched works great BUT LOL

when i try to play as ostheer in skirmish the game crashes,any ideas why
when i play as russian against other factions game plays great, i can play as 2 other german factions ok as well but ostheer crashes
playing through steam game patched fully ,

1. try if you have really the latest EF Patch. Check it in the Launcher, it should be [IP address redacted]
2. Reinsatll EF

same version [IP address redacted] will try a re-install,thnx for your help much appreciated