Добавил: The DSystem
To install, just put the materials folder in C:\Program Files\Steam\steamapps\youraccname\half-life 2 episode two\ep2. fire up the game, and it should work. if you want to uninstall, just delete the materials folder.
Sorry For the Crappy Screenshots, FPSBanana told me that the pictures were to big, so I had to size them down.