As you can see in the above video by YouTuber satantribal, parts of the prologue of Call of Duty: Ghosts, released yesterday, mirror the ending of Call of Duty: Modern Warfare 2, released in 2009. (Ghosts is the one on the right.)
Activision's annualized shooter series has something of a reputation, fairly or not, for rehashing mechanics and themes year after year. In this case, the animations are too similar for this to be a coincidence. It's probably an Easter Egg—a homage designed for longtime fans of the series to pick out and enjoy. But I kind of want to believe that this is the work of a disgruntled animator or two who'd just had enough of the military shooting, and that this is their way of saying "we're tired of this!"
We reached out to Activision this morning, and we'll let you know if they want to comment.