Yeah,i click the exe,with the commandos head on it,and it brings up the republic logo picture,and a popup saying"LOADING SCRIPT PACKAGES"
and right after that it just crashes with this message
unrealed.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
Go into game and set Bumpmapping to Low. This is a known issue and this workaround did the job for me and many others.