Some basic info, I really wanna get this game, BUT Super smash bros first

, btw, anyone know when this game comes out?
There will be four scenarios with around five maps each in the first release of Left 4 Dead. These scenarios take place in various urban and rural locales, including a hospital, cornfield, airport, and murky countryside. Four players take control of the four main characters of the game, "The Survivors", who play through the levels fighting off the Infected, which are humans who have been infected with a mutated form of rabies. Each scenario has four maps in which the players move from safehouse to safehouse, indicated by a red door, where the players get a save point and those who have died earlier in the level will return. The fifth map will have the players defending their position from a final onslaught of the infected until their getaway vehicle arrives, such as a helicopter in the hospital scenario. Each scenario lasts between 45 and 75 minutes.
Survivors don't die instantly from too much damage — they are first knocked down, but can continue to fire with their pistols until helped by another Survivor or they bleed to death. The Survivors can be knocked down a maximum of three times, after which they are dead. Movement speed is affected by injuries, slowing damaged Survivors down until they are helped by health kits or pain medications. Checkpoints provide a respawn point for dead Survivors. As long as one Survivor manages to reach a checkpoint, the others will appear again on the map in closets or in other "trapped" situations, and will rejoin their allies when found. Left 4 Dead will have full friendly fire that can't be switched off.