According to some detective work on the part of the Steam community, it would appear that Left 4 Dead 2 will be one of a handful of games supporting Xbox Live's "Avatar Awards" scheme, providing 360 users with frying pans, medkits, and T-shirts for their twee little Xbox ambassadors.

Steam user Fade Guy said he dug through the game's demo code and found files relating to these awards, along with brand new commentary audio files recorded by Valve boss Gabe Newell. Here's the full list of what Fade Guy says can be unlocked:

• Unlock the Med Kit by beating all five campaigns on any skill level.
• Unlock the Frying Pan by killing 10,000 Infected.
• Unlock the Garden Gnome by rescuing Gnome Chompski.
• Unlock the Bull Shifters shirt by winning 10 games of Versus.
• Unlock the Left 4 Dead 2 shirt by winning 10 games of Scavenge.
• Unlock the Zombie Hand shirt by killing 10,000 Infected.
• Unlock the Depeche Mode shirt by rescuing Gnome Chompski. 

So there you go. Of course, this is a rumor until Valve confirms it. In the meantime, look forward to possibly getting some Left 4 Dead Avatar stuff that you don't have to spend obscene amounts of Moonbucks on.

[Update: This is no longer a rumor; G4 has confirmed this with video. All awards have been confirmed except for the "Med Kit" reward. Check it out after the jump.]