Usually we associate Gears of War with team play, but Epic and People Can Fly are changing up that formula in Gears of War: Judgment by introducing a "Free for All" multiplayer mode.
Details are pretty scant right now, but the mode will apparently "turn friends into enemies." Official Xbox 360 Magazine will be running a special on the game (and all the gritty details) in fall, and the November issue boasts an image of Baird and Cole engaged in a Lancer duel (below). So basically you're going to be fighting other Gears in a non-team setting, is what we'd guess.
Judgment multiplayer will be available for play at PAX Prime this coming weekend.