I guess it's over then? 6 PM US/Central time and I went to go fire it up it's not even midnight here and it doesn't run any more.
I have to say I am pleased that I chose the XBox version but if the price comes down I may buy a 3rd copy I own 2 for the XBox so my son can play with me and I'd have a 3rd for the PC.
There are some aspects of the PC version I like. The Keyboard is awesome to have that much control, but I never quite got the mouse tuned to not feel sloppy. Thank you all for letting me play it for the weekend. I would have liked to have gotten through the DLC maps but I did manage to beat the campaign.