Don't commend them (IW) on what they've done right, otherwise they'll overlook what is wrong. They need to SEE and UNDERSTAND what is wrong.
I agree completely with everything you've said; I refuse to play HC because of team killing. As for Theater, they REALLY need to take a page from Treyarch and swallow their pride. I use Theater not only for recording epic ****, but to catch people cheating and attempting to boost. That functionality is gone thanks to IW dumbing down theater as much as they did. I'd love to see the Dolly Cam make a comeback as well; it was excelent for setting up those dramatic sticks, and clutch Tomahawk throws.