[8FS_Bulau]

Apparently it's possible to apply the 4.09 patch over the U.I., and still get a "working" game, except minus any new 4.09 content. (one of my squadmates did it). Nonetheless, it's a mistake, and the fix is to follow VonWaffen's link.

I have seen some talk about this 95% crash being caused by some new files:

mg_snd.dll
mg_snd_sse.dll

and that replacing those with old ones from unpatched game (backup) cures it.