Wilson[DJedi] pasted this link into IRC from Kotaku. You can now relive what it’s like playing on a public server in TF2, just mow down the zombies.
You can even download the hacked map and check it out for yourself.
Not much of a surprise this is a possibility, the two games do use the same game after all. But Left 4 Dead hasn’t even launched and someone’s already modding it (probably the demo, anyway.) Here’s nine minutes — reloading! — of Left 4 Dead gunplay on TF2’s Dustbowl map (slightly customized). Warning, the volume on this sucker is hecka loud for some reason, with tons of — reloading! — gunfire.