.map export script

Hello dear Blender artists forum.

What happened to .map export addon which permitted exporting for gtkradiant in blender 2.4/5?
I’m trying to learn how to create maps and it is quite a confusing task, one tutorial relies on a previous version and said addon script. I have not used blender for this purpose in the past, perhaps you have a better method.

the tutorial:
https://www.katsbits.com/tutorials/blender/map-basics-tutorial.php

Thank you;
N