[Alneyan]

PvK, I believe the map file is only needed when creating the game, and so it would not work here. I know my players did not need my modified Theater of War map file, so the game seems to store all relevant data (neighbour provinces, set VPs and so on) on its own.

If you are very lucky, Illwinter might have some tool to alter the game file(s), perhaps allowing them to override the victory conditions. That, however, is not really likely, and would require Illwinter to have some free time on their hands as well; not that I am their spokesman of course.