The link for the required part 2 was deleted by FileFront. This file does not work without it.
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.
lorena.covarrubias, chookychooky20, ✪ yFrPbX, TheGoldenPick99, micka2695, lunofearts, Koishikomeiji, eliteworrior, Abdelfattah Radwan, matterium130, ahmetefesagdic, prinslooveron6, gxliaiak, csirkecraft1234, TyphOn34, wiola.email, markclein11, MULTI, OMG, Kadera, janchristopher2003, gaelsbatman, Teppo, kablanova.elena, nomadjj4, Yolo csgo-skins.com, FIҐΣKͲ, hdbjhfhjshdfued, gagabielgugu, sanandresjgf, Marcin HYK, The_Amputators, nova PANZER, NicokoricoFR, loxenamex-1585, Blumenkind, datboi, WarframeGamer, muratcanga, JeStEm n1GhT, Sparky吶, josegames, klm76220ytb, fiterman004, Frosty Ace, clas622, ✪2AcB, harugamun, epicdude3346, Joseph12311 +9785 others