Amazon.com: Left 4 Dead 2: Xbox 360: Video Games
* On day one, Left 4 Dead 2 features more co-operative campaigns, more campaigns and maps for the versus game modes than the original Left 4 Dead did, plus support for Survival Mode right out of the box.
* Left 4 Dead 2 features quality next generation co-op action gaming from the makers of Half-life, Portal, Team Fortress and Counter-Strike.
* Updated “AI Director 2.0" technology expands players’ ability to customize level layout, world objects, weather, and lighting to reflect different times of day, creating fresh gameplay every time.
* 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.
* The game features four different survivors, a new storyline and new dialog.