In MW3, it almost seems like you have to be somewhat of a "campy" player to do well. And by "campy" I don't mean laying prone in a dark corner with a tactical insertion for the entire match waiting for someone to run by.
I rush during certain times on certain maps that have tight corners and are much more catering to run-n-gun, SMG tactics (Arkaden, Dome). But for other maps such as Resistance, Hard-Hat, Carbon, etc., there are simply so many lines of sights that running and gunning may often not yield consistent results.
The way that the maps in this game are designed lends to more tactical gameplay because there are so much debris and clutter scattered to allow multiple obscure lines of sights.
I mean, if you can run around all game and maintain a 3.0 K/D then all the more power to you. But for the rest of us average players like me, I also play a more conservative approach. Run from cover to cover. Aim down sights while you turn corners. Check every corner, throw flashbangs before entering, and ADS walk through heavy traffic areas. I also try to run back and forth between 2 flags in domination and defend them. I don't really think that should be considered "camping" at all.
