I have tried pretty much everything others have said, and nothing...starts to launch, circle curser appears, screen blacks out and I am back at Steam.

or do i have to buy the HD version?

On god, it doesn't even launch. It just shows a black screen while a command prompt in the background kicks off 1000 error messages. I've verified the cache, installed on multiple drives, etc, and it still refuses to launch. Is this because GFWL shut down? If so, I'm calling bulls- and claiming fraud. I bought the game. I should be in working condition. It is not. Shame on the devs for no end of life plan....

this has been sorted now dont comment on this page

Upon finishing all the waves of a level, a handful of enemy soldiers remain hidden on the map out of reach of any of my turrets. I would be stuck if these soldiers did not slowly die over the course of a few minutes, but this is pretty boring to sit through. Anyone know a fix? Seen some other people talk about it but can't find a proper solution....