Unzip and place the "materials" folder in your "materials" folder for your game.
E.G. Overwrite the folder "materials" with the one you just downloaded.
Place the folder here. C:\Program Files\Steam\steamapps\YOUR-STEAM-NAME-HERE\half-life 2 deathmatch\hl2mp\
Load up hammer and type "tsgk" in the texture search bar.
The texture was also used in my hl2dm map called dm-ob-attack-house-tsgk http://hl2dm.gamebanana.com/maps/155159
Made By: gtamike_TSGK