I've been playing this mission for years and I still can't figure out what the trigger is. But I think Bernadotte is right about the failure trigger. I have observed that when the ruskies are all over the place and kicking your ass that's when it usually triggers. I manage to defend the base, "collected" M60's, BMP's, M1A1's, M113's and still did not trigger the T-80's (I think I blew it up on my recon. Ooops!). Is there a way to open this map or mission in the editor? So we can finally see where the trigger is?