Originally Posted by Thermite
That's probably the worst decision I've ever heard. Has anyone at 343 actually played a Halo game before? Do they not understand there are significant differences in the core gameplay between all the games? Going from how a Halo 2 BR operates to how a Halo 3 BR operates after a single game (and then going back again) is going to be jarring as fuck. 343 should have stuck with one game having online multiplayer.
Edit: And that's just one thing. There are so many differences between gametypes and gameplay across all the games it's insane to list them all....
I don't think you need to worry. I can't imagine them not doing separate playlists as well. Just because they showed it that way doesn't mean it's the ONLY way matchmaking will work.