The black ops 2 camo system, like many people already stated, is the best camo system in any cod game ive ever played. Its very challenging, but not just headshot based like MW2 and not just kill based like MW3. Black ops 1 was wayyyyyyy to hard to get gold. 14th prestige and 50,000 cod points, really? Cod 4 was cool, but they shouldve made it so all primaries can become gold, not just one gun in each category (ak47, dragunov, etc.). Black ops 2 also has the best camos in general. Fall camo was horrible looking, and all the black ops 1 camos looked disgusting except the tiger camo and gold. Mw3 was just too easy to get all the camos, and the cod 4 camos were good, but red tiger was barely visible.
In summation: yes, black ops 2's camo system is better than MW3, and every other COD game.
I like both systems. The only camo I have issue with is the cam obtained by revenge kills.
No physical reward should require you to die.
Oh my god, I HATE getting those, when i was getting my Executioner Gold, (It's mastered Now, BTW. Quite sexy), Swear, i could never get close enough to get my Revenge.
Its like, you start the game, get a kill, Then you die, then after spawning, you instantly die again. Then you kill the guy that killed me 2 deaths ago...then he spawns behind me and you die. But then you spawn off my Tactical Insertation and kill him from the back.