How to add custom maps to your CS:GO Server
New maps can be installed using our Mod manager (See the guide available here) but if the map you want isn't available in the Mod Manager just yet, read on.
Download the map
Download your .bsp map file, and use the file browser or SFTP to upload the file to csgo/maps
Enable the map
Errors
You may run into an issue complaining about the map size:
CreateFragmentsFromFile: 'maps/surf_kitsune.bsp' size exceeds net_maxfilesize limit (16 MB).
If you see an error like this, you need to update net_maxfilesize in your server config to a value (in MB) that will allow your map to stream.
The easiest way to do this is install sourcemod (See the Mod Manager to install).
Open the file csgo/cfg/sourcemod/sourcemod.cfg and add sm_cvar net_maxfilesize 64 to the bottom of the file.
Restart your server, and the issue should be resolved.