New Electronic Arts Left 4 Dead 2 First Person Shooter Xbox 360 Stats Rankings And Awards System Quality Co-op Gameplay - Left 4 Dead 2 features quality next generation co-op action gaming from the makers of Half-life, Portal, Team Fortress and Counter-Strike. AI Director 2.0 - Advanced technology dubbed "The AI Director" drives Left 4 Deads unique gameplay  customizing enemy population, effects, and music, based upon the players performance. Left 4 Dead 2 features "AI Director 2.0," which expands the Directors ability to customize level layout, world objects, weather, and lighting to reflect different times of day. New Melee Weapons  Put a whole slew of melee weapons including axes, chainsaws, frying pans and baseball bats to use which allow you to get up close with the zombies. Meet "The Survivors" - The game features four different survivors, a new storyline and new dialog. Xbox LIVE Co-op Support - Along with the usual achievement points, Xbox LIVE stats, rankings, and other support drives collaborative play.