The man in this video had ten different customised weapons waiting for him at any time, so remember that if you choose to mock his overly-dramatic presentation of Ghost Recon Future Soldier's Gunsmith capabilities in the comments: he probably has a 'snotty internet jerk' config that'll make the Windows key on your keyboard garotte you. The plug and play aspect of the arsenal in Ubisoft's future shooter means there's a gun configuration for ever day of the week, plus 19'999'993 more days after that. Such configuration is essential if you're in the hunt for The World's Most Dangerous Man. I'm not sure if the video is hinting that Osama will be in Future Soldier, but I don't think it fits in the time frame. Not that they really care about realism: X-ray guns? If they have those then they'd clearly have a mecha Bin Laden.
Oh, it's out on May 25th. I actually do like co-op future soldier shenanigans, and the final few seconds have set out how I'm going to play the game: I'm the guy with the pet UAV.