QUOTE
The only thing I can think of if you want to be able to play against all (4 at most) sides, is changing the order of the sides (houses) in the firestrm.ini file. Then when you play firestorm, you'll play against one of the first 2 sides in the firestrm.ini file and when you play regular TS, you'll play against one of the first 2 sides in the rules.ini file.
But you would still need an new AI.ini, as the init ID's would be different, and you couldent have them the same as it would crash the game.

Fluent in |3375p3k, 68 65 78 65 64 65 63 69 6d 61 6c, ebg13, -- --- .-. ... . -.-. --- -.. . --..-- and 01100010 01101001 01101110 01100001 01110010 0111100100101110
(Whoever translates that gets nothing, just +1 on thier geek score)