how does one add custom / modded map

[Commander Yamato]

i somehow am unable to add custom / modded maps to my game
its the newest release of 20250330
i even created folder for it

does anybody know how do i make it work or someone willing to help in other way

[porenut]

You could donwload ISO file from some abadonware site, mount it, open Openra and use Manage content. It will automaticlly donwload all files.
Gruntmod should also work, but I never use that, so I dont know how it works.