Why is there so much "news" surrounding this topic?
COD is a single player walk thru movie-story. We all know the engine is severely
outdated, so they had to rely on other sorts of "entertainment" within their games. Thus, the added weight of the game is cut-scenes & back story.
Secondly, look at who the target audience is.. COD can't compete, so they have to impress.
Lastly, who puts an FPS shooter on HD..? (HD is for back up.. )