Gears of War 3 has a very exciting new online mode, revealed for the first time at E3 2010. Building on the success of Horde mode, Beast mode is an arena-style battle where you try and kill off waves of enemies. The catch? You play as the Locust, killing COGs. Epic is going all out with this--it's not just you playing as wretches. You're going to be playing as a lot of different Locust, from Tickers to Cantus Priest's to Berserkers. It's going to be insane.