Halo 3: Earn double EXP and some achievements

Today's the beginning of yet another Halo 3 double experience point weekend, but this week is something special. From now through Monday morning, Legendary map pack DLC owners will be able to play some twelve player Legendary Brawl. What's so special about Legendary Brawl? Well, not only can you earn twice the EXP love, but seeing that it's a ranked free for all playlist you'll also have the chance to unlock achievements. And with twelve players, the odds of unlocking Halo 3 achievement deliciousness dramatically increases. Have fun!