Well I personally play Ground War so I'm an objective rusher. Although holding down an objective isn't camping it's technically playing the objective. Although of course it's easier to call someone a camper than to simply say we're pissed the guy didn't allow us to easily get the flag.
You shouldn't use such a Straw Man argument by equating getting high killstreaks with camping. In Black Ops 2 camping for high streaks isn't nearly as easy as other COD only because the more objectives you capture and defend the quick you get your score streaks. Also things like how Ghost works, map size, shotguns, SMGS, C4, pistols and sheer number of flank routes make it incredibly difficult to camp and get high streaks unless you're playing noobs. Dirty little secret being it's easier to camp if the enemy isn't that good to begin with.
Also having the highest score can occasionally be deceiving. A guy using UAV, CUAV and a ton of EMP nades can have a higher score than a player running VSAT, K9, Swarm and it doesn't mean the guy running higher streaks was camping just that assists points, captures and defends add up quick.
I prefer to be in the top 3. Number 1 is great but I once had a 62-5 game with 6 captures and 15 defends and was 2nd to a guy like 40-18 with 8 captures and 10 defends only because he also ran UAV, CUAV and VSAT.