Now now now, i'm surprised about the high number of people that doesn't like Halo Reach: saying the campaign was horrible, the multiplayer like CoD, and so on and so on.
But i don't pay much attention to the multyplayer of a Halo Game, looking instead to it's singleplayer and co-operative mode. Because Halo is born with this: Campaign and Split screen, nothing else. And troughout this many years, i've been satisfied pf the main story, loving the trilogy and appreciating the others. And i found Reach a good game: i really like the campaign, showing the relationship between the Noble team and the sacrifice to success their duty. I enjoyed the multiplayer for it's costumization, but much more for the assence of the Uberpowered BatlleRifle: i mean, in Halo 3 everyone had the BR, because it was the perfect weapon. At least in Reach we can see different loadouts and a superior variety of firepower.
I too am worried about the tendence to the CoD multiplayer, but if Halo 4 will have a good, well done story, like the trilogy and even better, for me it's ok.