I am not too sure about Aquazone. It doesn't seem spacey at all. The Rock Raiders are definitly space (The basic idea around the story is the ship LMS Explorer crashed on some planet, and the Rock Raiders went to go find crystals to fix it up. So definilty space. And since they are space, I would do the Power Miners as well. Exoforce is rather iffy. I would lump it in there, seeing as the have giant futuristic mechas.
I really don't know what to do about "made up" factions. I generally only build in the classic set themes.

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