It definitely promotes camping, the older COD's never had so many avenues within a 3 yard radius, a ridiculous number of windows, doors and pathways. And all of the pathways available were all on ground level, where now it's ground level, first, 2nd, 3rd floor and in some cases 16 floors up. A video got posted earlier of 'what crossing a road feels like in MW' which is bang on, he checks everything, all windows and doors, steps out and gets blasted by a camper. Also people are camping incessantly now. I've just made it a rule now to never walk through the centre of a map and just stick to the outskirts and flanking and I'm picking up a lot of kills but I definitely see it being a problem. The time to kill is really low, and there's far too many windows to constantly check before moving so people are just picking a window to sit in.
I am enjoying though that it's not just run and gun which I think is dumb as feck anyway, but they need to make a few changes like removing the fact that the other team can hear you shout 'CONTACT' 'I'VE GOT YOUR SIX' when you're right behind them, and toning down the footprints.
Also the Kilo 141 actually shits all over the M4A1. I have the M4A1 up to level 48 and the K141 up to like level 16 but having way more fun and success with it. Also the Oden is slow as hell to fire but really powerful.