You guys need to stop hating on the developers. If I was in charge of the CoD franchise I would do EXACTLY what they are doing i.e. save resources, save costs, re-hash as much stuff as possible and sit on my growing money pile. You can't seriously tell me you wouldn't do the same thing if you were in their shoes...screw morals/ethics, screw hindering the progression of gaming, screw innovation, you are making BILLIONS OF DOLLARS. JUST DO IT. (You're not exactly being Hitler).
Also nobody gets Eric's innovation comment, he said "set the bar for innovation" because at this point he is TESTING to see how much bullshit he can get away with saying to the fanbase. Think about it, no matter what he says or what the company does, as long as they release a box with Call of Duty written on it and market the crap out of it...people are going to buy it up. The devs might as well troll the consumers right in their faces while doing it (they won't even notice), I know I would.