Unlimited_X MOD is a modification based on Homeworld 2. It will set up a new world for the players - new storyline and background infomation, new races, new maps and new effects.. etc. UXMOD will just has a develop team of one moder. It's somehow a "private" mod containing the moder's imagination.
Basic model for in-atmo battles..
These Hgn Carriers are just ordinary space startingfleets and will not likely to appear in the in-atmo version (since a captal ship is too large to obtain altitude, but bigger ships can appear in asteroid-based maps).Wait for the news authorization for more infos
-UX
It looks very interesting to featuture atmophere maps.
I think you might be the first one.
Complex Simple has some similar things but it's mostly just close to the Planets or moons.