In part due to information collected during the Halo 3 Multiplayer Beta, players can expect the release version of Halo 3's multiplayer game to be a better experience than Halo 2, says Tyson "Ferrex" Green, Bungie's multiplayer design lead. Toronto-based radio station 680 News has a text article on their website (thanks Louis Wu for the heads-up) with Green about the upcoming game.
Random fact from the article: Ferrex has now spent seven years at Bungie.