Doug Lombardi, Valve's VP of Marketing, has told IGN that the upcoming Left 4 Dead demo will take place "from the front of the Survivor's first campaign (including the opening movie)." This area of the demo will encompass a hospital level, and an area "outside the Hospital."
"The main part of the game has you play as one of four survivors who are immune to the virus that has turned most of the population into a variety of mutant zombies.
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