Subscribe to download
gm basic map

this was my first time working with hammer and gmod's uploader system. (god that was annoying)
What you need: garrys mod
that's it
oh yeah if there is no thumbnail for the map click here https://drive.google.com/file/d/1Mqnje5_n0zRYorp0rJ8oPgb1Hd4NAbZ9/view?usp=sharing and then put it in:
(steam folder name)-steamapps-common-GarrysMod-garrysmod-maps-thumb
if thumb is not there make a new folder and name it that.

for the video my map appears 3:42 minutes in.