Here’s my attempt at following in Moe’s footsteps. This tutorial should take you from start to finish on a basic mod to create a new playable race using the Progenitor ships from HW2. This is aimed at beginners new to modding Homeworld Remastered. It is compatible with HWRM v2.205.
I mention UnfBig in the tutorial, you can download it here: http://www.moddb.com/games/homeworld/downloads/homeworld-universe-mod-tools
I’ve also uploaded a “control” version of the mod that you can compare against. Feel free to rip it open and examine the files if you get stuck.