Homeworld Classic Enhanced for HWRM
You will also need to download the level thumbnails from here:
Drop the thumbnails into "leveldata\multiplayer\deathmatchhwcm".
This mod has two readmes:
There is also a HTML reference for the maps, but you will need to download it first before you can view it:
Previews images can be found here:
The Steam Workshop page for this mod is here:
The older version of this mod for Homeworld 2 Classic is located here: