Here's some pretty good footage that more or less proves Leatherface being in the game.
But is it so? Or is it just a mod?

Leatherface video 1
The clip is six minutes long, so be patient, the action starts halfway into the clip.




Leatherface viceo 2
Here's another one, of bad quallity, but yet still convincing.




PS: These videos are confirmed to be mods.