There are basically 4 ways to make such a "standard":
1. Have the same developer(s) work on all the paradigms (stealing terminology from Adamant to refer to the different genres of sci-fi
)
2. Come up with some sort of "point system" where someone can "buy" goodies for their particular paradigm. So if I want to add Planet Killer Super Lasers to the Star Wars paradigm, I have to calculate how many points that would cost, taking into account reload rate, damage, tonnage, research cost, and a host of other factors to balance it with the Borg's regenerative armor, which uses a completely different set of parameters to determine its point value
3. Do extensive playtesting!
4. Make everything the same just with different names and/or primary resources, ala Adamant or STmod
I personally think a combination of approaches 1 and 3 would work best... approach 2 is rather impossible to do properly