There are three classes in the arcade-style game: Scout, Heavy and Assassin. Your job is to pilot one of them in "death matches, free-for-alls, and capture-the-flag frenzies." The goal seems simple: "battle to crush opponents, slaying everything in your path of relentless devastation, both online and off."
And don't forget high scores. There are a couple of gameplay and instructional vids after the jump.