Tweet from @DavidVonderhaar: Finally got to see the video wall. If you know what to look for you will find MP footage in it. Don't tell anyone.
This is the video wall I assume he's talking about:
12:10 to 12:20. No hud, its third person, but you can tell its MP just by the way the players move.
Not really much to go on, but you get a little peek at three maps. You can see the quad rotor fly by for a bit, and there's some odd looking equipment planted. Also thought it was kind of odd that the players are carrying two assault rifles each in the first shot, dunno if it means anything.
Looks like COD.