We brought you some leaked footage earlier, now it's time for an official Battlefield 3 multiplayer trailer. It's chaotic, destructive, brutal, and features a glimpse of some of the frantic underground fire-fights featured in the Operation Metro multiplayer map. The trailer comes with built-in flickery video effects and angry machine noises. Don't blame your monitor, that's how war is supposed to look. Battlefield 3 is out on October 25.