I modded the AI by changing
1) core_attitudes
2) faction relationships
3) campaign AI settings

All of these have been tweaked somewhat to an extent where I have factions that have military access, alliance, trade rights granted to each other, right when you start the campaign. Now romans arent the only once who form unbreakable alliances. I did these so everything is balanced though.

Now the question I had was what triggers the roman factions later in the game to become hostile to you, is it scripted somewhere? Or are they always your friends until you back stab em ...hehe.

Also I changed a few other things and use show_err if the game goes back to the main menu when I try to start a new campaign. Unfortuanetly show_err doesnt work if my game crashed to desktop when during AI turn... it sucks so much because I thought I finally fixed all the errors, and like on the tenth turn as the egyptians, it just CTDs' and never shows what went wrong...

I hope someone can give me an idea, or a tool that can check for errors that makes the game CTD.