This Call of Duty Ghosts scene was copied from Modern Warfare 2
A youtube video has surfaced showing a side-by-side comparison between a scene from Call of Duty: Ghosts and Call of Duty: Modern Warfare 2.
It is possible that Infinity Ward copied the scene on purpose to pay homage to their own game. Or maybe it is meant to be symbolic of how war never changes. A third possibility is that Infinity Ward just didn't have the budget to develop new animations. After all, it's not like Call of Duty is one of the biggest franchises in modern gaming or anything.