Video: Left 4 Dead "Check" commercial

"Call these freaks whatever you want." While they're referred to as zombies throughout the commercial and from as far back as we can remember, we realized we're not sure what exactly the enemies in Left 4 Dead are. Misunderstood model citizens? Either way, come November 18 we know exactly what those "infected" punks will be and by that we mean dead from our collective weaponry.