On September 25, millions of gamers will pop in Halo 3 and play through the campaign. Finishing the fight is going to be on everyone's priority list. But once that fight is finished, it's Halo 3's multiplayer that will fuel gamers over the next several years. With the Halo 3 Beta, gamers were able to experience three of the new maps. And while Bungie has offered sneak peeks of some of the other maps available in Halo 3, there are still several that remain unknown. Today, IGN's able to reveal another of the multiplayer maps: Isolation.