Ahh, my mistake considering that my knowledge of this comes from the E3 articleTupolev said:Actually, you're not. Halo: Anniversary's multiplayer is effectively a 7-map DLC pack for Reach.viranimus said:HOWEVER! its not a waste, because well, with this incarnation your getting an opportunity to play the original halo multiplayer with proper modern matchmaking systems already in place. On that point I can agree that this is not all together a bad idea.
343i has announced that they're working on a title update which will hopefully help make the classic playlist suck less than the current one, though they haven't discussed much specifics of it.
http://www.escapistmagazine.com/news/view/110932-E3-Halo-Anniversary
which portrays it as it even running the same original scripting with the Reach engine running as an overlay.
Even still, a 7 map pack for what will be in essence a stand alone game for multiplayer that will recapture the multiplayer of the original game doesnt seem like a terrible idea to me.