It has been fixed by the fans already.
The spawn is one at a time at 8 seconds random TIE, Intercepter, Bomber, Defenders in some number limits of 32, 24, 12, 5 IIRC I need to look at the XML again.
I been changing some thing for my liking -the game is quite frenzy at the moment. I like a more slower massive tactical fights. And get the AI to work with it too.
LUA scripts encryted again for now -if you want major changes to behaviour.