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

• Halocar/
  • materials/
    • models/
      • haloreach/
        • detail_metal.vtf
      • HC/
        • mc_car_civilian_a_diffuse.vmt
        • mc_car_civilian_a_diffuse.vtf
        • mc_car_civilian_a_zbump.vtf
        • mc_car_civilian_damaged_glass_diffuse.vmt
        • mc_car_civilian_damaged_glass_diffuse.vtf
        • mc_car_civilian_damaged_glass_diffuse_bump.vtf
        • mc_car_civilian_extras_diffuse.vmt
        • mc_car_civilian_extras_diffuse.vtf
        • mc_car_civilian_extras_diffuse_bump.vtf
        • mc_car_civilian_tires_a_diffuse.vmt
        • mc_car_civilian_tires_a_diffuse.vtf
        • mc_car_civilian_tires_a_zbump.vtf
        • Winshield.vmt
        • Winshield.vtf
  • models/
    • Halo_Car.dx80.vtx
    • Halo_Car.dx90.vtx
    • halo_car.mdl
    • Halo_Car.phy
    • Halo_Car.sw.vtx
    • halo_car.vvd
    • Halo_Car.xbox.vtx
    • Halo_Car_alt2.dx80.vtx
    • Halo_Car_alt2.dx90.vtx
    • halo_car_alt2.mdl
    • Halo_Car_alt2.phy
    • Halo_Car_alt2.sw.vtx
    • halo_car_alt2.vvd

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