Here is a gameplay reveal. I have not watched it yet, but I have it buffering in mighty 1080p before I start playing it. It is 17 Minutes long, and from a single player campaign. Consensus is that the clip looks amazing, with a squad helping you out appearing to give you more open fighting in it. Other things that have been noted include fantastic explosions, and a dual sighted gun (iron sights and a red dot scope), an interesting thing.
If there is one suggestion though – Don’t be like the commenters on youtube, crying that it’s not realistic because it does not have jumping in the vehicle animations. Admit it – you would go crazy if there was a reasonable delay getting in the way of you having fun.