Team Fortress Classic

Team Fortress Classic is a Valve-developed mod that was originally released with a Half Life patch. Back in the day, when men were men, women were nervous, and Medics were faster than Scouts, it ruled the FPS scene with Unreal Tournament, Quake 3, and Counter-Strike. It's only played by a handful of people today, since most players moved on to the cartoonier Team Fortress 2.

Unused Flag
An unused flag model can be found in the game's files under the model name "bigrat.mdl". The actual model is from Quake Team Fortress, the first TF game ever made.

Gas Mask
A gas mask model can be found in the game's files. It is likely that it was supposed to be used for the Rock2 map, as the Quake Team Fortress version of Rock2 uses a custom gas mask model for the item that protects you from gas when a team scores.

Early Nailgun
A HUD texture for an early Nailgun can be found. The actual model shown is the HL1 MP5 model, which can be seen in an early screenshot.

Early Flamethrower
An early Flamethrower HUD image can also be found with the rest of the HUD images, and it can be seen in a pre-release screenshot as well. It seems to be an unaltered Gluon Gun.

Team Fortress 2 ad
Hidden in the "tfc.wad" texture file is an ad for the then-upcoming Team Fortress 2. This was never used in any official map.

Quake Powerups
All of the powerups from Quake can be found in the game's file, placed in the map editor and work in-game, but only the Biosuit appears in official levels.

Unused Armor
Models for Green and Yellow armor follow the same pattern that most of the Quake powerups do; model found in the files, can be placed in maps and works, but never used in any official map.

Region Differences
The German version was edited to remove blood particles and change the blood splatter to tamer stuff. It also made every single class use the robot model from Half-Life, making it difficult to distinguish between classes.