Best to go to the source--Kalle's Gamemaster on GitHub.

more info here
https://steamcommunity.com/app/6060/discussions/0/522728268818497982/

(edit:  seems to be dead links and I do not see anything on a search any more)

Is there a guide for setting up your own master server?

here is a youtube for spawning vehicles
.
Good luck Triops

I have trouble with mapmaking because idk how to delete something I have placed but wrongly and cannot undo, if someone can help me, this forum is my only hope

Fixed it, I hadn't set my map terrain size to a power of 2. I had 280 but once I put 256 it worked again

hmm, I am not sure...but most issues have been run across before...you might try the forum search function (top left) if no one replies.   

I'm having a strange issue. My terrain height updates are not munging. It's odd because I see a new .terrain file generated when I munge, but when I go into the game the old terrain height values are being used. In zero, all my updates are present. I assume zero is loading the .ter file so Im confused as to how munge is getting old data to use when generating the .terrain file. My .wld file is referencing the correct and only .ter file. I've tried cleaning and deleting the .terrain file with no success. Anyone every encounter something like this? Thanks

Welcome!   

start here: https://www.swbfgamers.com/index.php?topic=3545.0
and you will find a lot of information in our tutorials section.

Hey, everyone ! 

I'm currently making a custom map for SWBF 2004 with BF Builder Zero Editor, and I would like to know how to spawn vehicles in my map ? 

Oh and by the way by any chance if you know how to deletes objects and things added to the map, I struggle with that too xD

Thanks in advance ! 

I am not aware that this asset is shipped separately.

However, it is part of the Bfbuilder tooling:
https://www.swbfgamers.com/index.php?action=downloads;sa=view;down=1219

You find the resources under assets/sides/cis.