Pingperfect Ltd - Knowledgebase - Counter Strike | CSGO

If you are using Steam Workshop maps ONLY:

Create a collection with the maps/content you want (https://pingperfect.com/index.php/knowledgebase/666/Creating-a-Steam-Workshop-Collection.html).
Create a custom command line in the game panel with the following fields filled out: Authkey, +game_mode, +game_type, +map, +mapgroup, +host_workshop_collection, +workshop_start_map
Authkey is an API/Authentication Key that is generated from your Steam login. This is necessary for this method to work and can be generated on the Steam website (http://steamcommunity.com/dev/apikey); gamemode/gametype/map/mapgroup/workshop start map are down to your preferences; host workshop collection is the collection ID you created in step 1.
Save the command line and select it. Your server is now running with workshop content.

If you are using maps obtained from somewhere DIFFERENT than Steam Workshop:

So first you need to download the map you want.
Extract all files to the right place using FTP, in this case we only have a .bsp mapfile that goes into csgo/maps. (FTP tutorial http://pingperfect.com/phpbb/viewtopic.php?f=67&t=568)
Update mapcycle.txt and maplist.txt located in csgo folder
Update fast download if you have it.
You should now be able to play this map without problems.

Counter Strike | CSGO | Adding Custom Maps