I have made a Dune 2000 Campaign with Custom Content.
In order to play it just copy the contents in your Dune 2000 folder and use the Mission Launcher to play them.
The GruntMods or Dunemaster version of dune 2000 should work fine with the modded content.
Here are the 2 versions of Dune 2000.
Gruntmods: https://gruntmods.com/dune_2000_gruntmods_edition/
DuneMaster: https://dunemaster.webs.com/files
Here are some screenshots
Atriedes Chapter: Done
Atreides Missions playthrough
Ordos Chapter: Done
Ordos Mission playthrough.
Harkonnen Chapter: Work in progress
Harkonnen Mission Playthrough.
Harkonnen Chapter: Done.
Here is a full playtrough done by Nguyễn Quang Luân
There is the all the content including the maps and custom content: https://drive.google.com/file/d/14oCxvtUFzDjoogac8CFflTX0RbZU91d_/view?usp=sharing
I hope you have fun.