Anyways, having slept on it, why not break FS difficulty off from AI difficulty? Just make the Exo multiplier scaled strictly from FS difficulty. This gives the best options available to all players, at any difficulty. With the current system you need to come to this forum and look up the formula to calculate the FS difficulty setting for your AI difficulty.
Except I see AI difficulty as overall difficulty. I have always assumed that all minor factions that spawn military ships scale with difficulty. (Keith, can you confirm?)
I believe you're correct on that last point, Diazo, at least for stuff that spawns enemy-to-the-human units. The Dyson could be an exception, however.
In any event, I think Hearteater may have a point here. Sure, the AIDifficulty factor is common among those factions, but it was common because there was no variable intensity of the factions. Now that there is, why vary it by two factors?
On the other hand, the current way is intentional even with the two-factor approach: If 4/10 FS always gave the same size exos as Diff 7 does now, then playing 4/10 FS on 10/10 would probably actually be an _easier_ game than playing 10/10 without any FS. Because honestly the exos on 4/10 FS 7/7 just aren't that strong compared to the threats anyone who has any business challenging 10/10. And once said person gets FS capital ships, they can turn around and
hammer the normal fleet ship and such threats that actually scale with AIDiff.
Similarly, playing 4/10 FS on a 1/1 game would possibly be harder than a 7/7 game with no FS, at least if you weren't counting on it coming after you with (relatively) vicious exos.
So if the minor faction intensity scale really was supposed to be parallel to the AI difficulty levels, this would make sense. But I'm not convinced that's the way to go.