Probably logistics... the amount of work porting each engine, and the QA involved in this project must have been ridiculous. Adding another full game into the mix would have been crazy, though the Firefight mode in ODST is my favorite.
i knew that lie about halo 2 anniversary not being announced this year from that frank dude was bullshit. but i am a bit confused....so can we play every halo multiplayer or is just halo 2's mp with all the maps
Just taking a break to catch up on the news, but learning the glitches are in makes me a lot less sad I'll miss out on it. As Frankie said, there was no easy way out of it, but I was on the "damned if we don't" side of things.