Cross Sword by Jason278

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:

• steamapps
  • common
    • garrysmod
      • garrysmod
        • addons
          • TF2 Cross Sword hexed <-- Addon folder!
            • e.g.
            • lua
            • maps
            • materials
            • models
            • etc

• TF2 Cross Sword hexed/
  • materials/
    • models/
      • weapons/
        • Cross Sword/
          • beam.vmt
          • beam.vtf
          • cross_sword.vmt
          • cross_sword.vtf
          • cross_sword_n.vtf
  • models/
    • Cropons/
      • c_models/
        • c_pickaxe/
          • c_pickaxe.dx80.vtx
          • c_pickaxe.dx90.vtx
          • c_pickaxe.mdl
          • c_pickaxe.phy
          • c_pickaxe.sw.vtx
          • c_pickaxe.vvd
          • c_pickaxe.xbox.vtx

EymenTRG, dayatmarpa1, ☾☆ , ivanvel2011, Friendly-Scout-(TF2 Player), sunny1233xd, zakopaniy, kunstarandi, fallnightronin, matthiashaagen6800, grewok, marlor1266, chatchawin1923, migusanchez2020, svetlick09, Dark_6554_, SpiderMew, anddrej.shestakov, alenoemi86, nikolas2010, Shadow, Hua-Ji, DIO, 1491645103, Majestic!, mybaconuseristhis, alakazam 27, ุR, Avatar4W05 polski-survival.pl, beratoyun, Jake Thomson, schneiderlima08, semenenko_75, bxdszymon54, Necrowolk, SexyGirlyxx, leonel.cazaresmurillo, ticcitobyrogers02, ShawZ, REMEMBER, Haxonuk, Rene Hatsune, jeanellebarrientos, McFortniteGod, Spectre, Ahsoka Tano, «Geraa[HUN]», turnerp2000, Василий Канчий, yxyxyx +58 others