It seems that l4dmods recently got their hands on some juicy information that lets us know what the Left 4 Dead 2 SDK holds for us namely; custom models.

Now, this isn’t confirmed but if the below excerpt from the SDK’s addoninfo.txt is to be believed, developers will get a chance to include custom survivor, special infected, common infected and weapon models in addition to being able to actually customize a weapons functionality. Check it out for yourself:

addonContent_BackgroundMovie 0 //Provides a replacement for the background movie.
addonContent_Survivor 0 //Provides a new survivor model. 0=false, 1=true, String in quotes if replaces specific single character, i.e. “Francis”
addonContent_BossInfected 0 //Provides a new boss infected model. Break these out?
addonContent_CommonInfected 0 //Provides a new common infected model
addonContent_WeaponModel 0 //Provides a new appearance to existing weapons, but does not change their function
addonContent_weapon 0 //provides new weapons or new zombie killing functionality, i.e. guns, explosives, booby traps, hot tar,
addonContent_Skin 0 //0 if no new skin textures for existing models. 1 if multiple skin pack. String in quotes if specific single skin
addonContent_Spray 0 //Provides new sprays.
addonContent_Map 0 //Add-on provides a standalone map

We’ll have to wait until either Valve speaks on the new SDK or it actually comes out before writing this one off as confirmed