Hi I have the exact same crash. Just finished the campaign and it worked fine. But during skirmish, the game keep crashing after about 10 minutes.
The report says:
DX8 error 0x0x80004005 (E_FAIL)
2 addresses:
(unknown)(0): game.dat+8961088 Debug::PostStaticInit+3296
(unknown)(0): game.dat+9474284 Debug::PostStaticInit+516492
Because of the severity of this error the game will now exit