Thanks to some slick detective work by Joystiq, namely checking every online retailer known to man, they were able to lock down a solid release date for the upcoming four player co-op Ghost Recon: Future Soldier on the 360, PS3 and PC. I know what you are saying, internet retailer release dates aren't anything concrete - even if they are all lining up together. It's ok, I agree - but in this case Joystiq went a step further and confirmed directly with Ubisoft the date in question.
And that date is... March 6th, 2012.
Source: Joystiq.com