This download looks like an addon. You need to extract the downloaded zip and put the addon folder in your Garry's Mod addons folder. You should end up with a directory structure similar to below:
Don't know where the Garry's Mod folder is or how to extract zip files? See more useful installation tips.
JanuszMolski5519, undelhot, weweeeeeeeee, ahmedgame04, ZwanAxe, BlueGaming1412, Chocking_Killer, Chocking_Killer, luivan05, kawanssilva10, Nightstorm1003, deadendcrow, @[email protected], Razorman220, rb60646, darkplaygames, abeldodok, chl180200, 0rca, nobel-97, alexfirmol, dani_herrera_2002, talking, jet1234567892, Fox 666, Backstab me, 심정우, parham.davatgaran, banchangbluey, jerychox, Troll, a0917048, golden freddy, gyenge, silinc.sebastian, [ ONG ] อ๋อง, Мамкин борщ, SVK ✪☭✮ JanosikPD ✮☭✪ SVK, perawas1640, varzol75, bbenjamin1702, TeeNKunG, анимешникцезарь, ONucleos, bulat.aypov.aypov, MikeyMan10Ash, Kylo Ren, haroonbasil440, Vilijam, noraida.juni +77 others
