strider_cannon.zip

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
          • strider_cannon <-- Addon folder!
            • e.g.
            • lua
            • maps
            • materials
            • models
            • etc

• strider_cannon/
  • info.txt
  • lua/
    • effects/
      • stridcan_charge/
        • init.lua
      • stridcan_expld/
        • init.lua
      • stridcan_fire/
        • init.lua
      • stridcan_mzzlflash/
        • init.lua
    • weapons/
      • weapon_stridercannon/
        • shared.lua
      • weapon_stridercannon_admin/
        • shared.lua
  • models/
    • weapons/
      • striderwang_jaanus.dx80.vtx
      • striderwang_jaanus.dx90.vtx
      • striderwang_jaanus.mdl
      • striderwang_jaanus.sw.vtx
      • striderwang_jaanus.vvd
      • striderwang_jaanus.xbox.vtx
• readme.txt

Zombine, Victor082134, LNikitjew, luizbrF2P, 8hanafi8, tropman.maksim, bschmp, kometx21, curimapa, Santosar, an idiot, b.u.b.b.y., Walo, Cleansuit Bubby, tolioxpro8736, patrulis, Aslan, Lord Azura {EPN}, ???, rgood8526, HawkGaming, Iliketurtles93, tkacenko1958, tkacenko1958, I love finnish people, Tyrannotitan Fan, Tyrannotitan Fan, Vanzinho, alex966966966, SASTROOPER15, PyBro, mu.hen.al.sil, aramendi661, Aaron Alvarez, troriphecr, mehmetnil0234, ROCCOROCCOROCCOROCCOROCCOROCCO, levaka07, ms.mentison, A Random bird, toilopince, jyrec7229 CSGOLIVE.COM, kkkkkkkkk, toliox89_54pvz, GraczPL, thoriqul29, Paitu, Paitu, Katy Kalinka , TH38Ki113R +70 others