I think I speak for... well... me, but I get the general feeling that my opinion is shared amongst the majority of HaloGAF (of which I am only thinly a part of by association) when I say "You got your Reach all over my Halo CEA!", to which the Halo Reach fans say "But you got your Halo CEA in my Reach!". Both of them.
I really don't understand why there's more TU stuff in this Anniversary-centric update than pure Classic, I dunno why I'd ever set foot out of the Classic playlist except when I'm itching for BTB, at which point I'm sure we'll see the BKs vote up the non-classic game types to drive me right back out.
At least CEA will get HaloGAF playing more actively so there's Customs, or at the very least people to play with that don't suck.