6v6 did punch a hole in the hype for me. Still anticipating it though. I know enough people around me will get it so I'll be getting it as well.
But as for the main question. No. I still play other shooters. Halo 4 is still very awesome and chaotic. My cousin and I just get into a warthog with me on the gunner and we do like 25-30 kills a match. It's crazy stupid fun.