A- Open the file with 7zip, Winrar or any other program that allows you to unzip these types of files
B- Unzip the file into your MAP FOLDER who start on your server.cfg
C – For FiveM servers – Drop the file Small Mechanic Garage.ymap to the Stream folder that should be located in your Map folder, and that folder shall need to be up on your server Resources folder.
After you have that ready, you will need to start the script on your
Server.cfg (The name of the script will be the name you have put the maps on… For example : start Map2)
Installation GTA5 Single:
> copy files and go to open4/gtav/mods/update/x64/DLC packs/custom maps/ dlc.rpf/ x64/ levels/gtav/citye/maps/custom maps rpf/ paste it here
> open gtav and go to the location