Installation: (addonpeds method)
1.Install this addonpeds.
2.Place the FIVE files from the Hermes_The_Pest archive to update\x64\dlcpacks\addonpeds\dlc.rpf\peds.rpf
3.Open AddonPedsEditor.exe and add HermesGOW3 model in the list as normal ped (check ReadMe for AddonPeds).
Credits:
TheFuumaSage