Nit: The Orions didn't lose the 3rd Interstellar War, the Rigelians did. If you want some extra work, you can always put a single world in some remote system with ships blockading it to represent the few survivors of that race.
Hm. For the Gorm, I'd make them a different atmosphere from the Orions and Terrans, to simulate the effects of their heavy-world origins. (In Starfire, they breathe oxygen but in Terran and Orion environments they require a compressor to match the air pressure differences.)
Pity the Shiva Option can't be used as a game effect. (Why yes, I hope the Arachnids are blown to smithereens, thank you.)
Horrified Realization: This Civil War will happen while
Ivan Antonov is still alive?! Eeeeeeeeeeee....
