User modifications

Skins are user-created modifications that change the appearances of weapons, hats, and player models. Skins are unofficial and are not supported by VALVe. Skins cannot be used on servers configured with sv_pure = 2, which forces the client to ignores all user content, including custom spray. Skins have also been implemented in cheating, skins can increase the range of melee weapons and can cause characters to be brightly colored so they are more visible. Some weapons, such as the Homewrecker, began as skins and were later contributed into the game.