This download looks like a map. You need to place it in your maps folder inside the Garry's Mod 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.
wiola.email, Randolover, tolf-dietram, tolf-dietram, lol, abdullahrauf539, michaelklein1107, Golden, MammothXApostle, Limbo, jmlddn, GENTLEMEN SPY[ASİL TR], x Trinity v, Biker, Galacta-X, MisterAlpha, Lucas096br, Beast, xXn00bslayerXx, death by salt, metamophic, bielskipiotr1234, GhaniGamerXD, RazetheBeast, roy13al, Squeeze, D1nickle, GOLT[TH], FZ.Crazy.BCLM, www.andrews, tar0630, l.q.q.u.i.n.n.7.7, VoNiTo101, Circonvolutor, Tekno Rage Gamez, IM.DEATH, errollees, Gedovics14, aaaaaa13569, [DWM] The BLU Guy, [email protected], durpachudurp, Histoire, Jatv13, fenixx234, Xshamanc, [CO2] Daniel7D3v, stormap9, pstratto, Sex KAMAZ +100 others
