The video was part of a shameless marketing campaign started on the Call of Duty Twitter:
Exclusive sneak peek from @InfinityWard of Call of Duty: Ghosts for our followers! RT to tell your friends where you’ll be on 5.21
A brand new entry in the now-annual Call of Duty series, Ghosts is in the works at Modern Warfare developer Infinity Ward. It’s due out on November 5th for PC, Xbox 360 and PlayStation 3, with PlayStation 4 and
“next-gen consoles” the new Xbox planned later.