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Yes, that's right. I'm not very good with the editor, but I decided to implement this mechanic – considering the map's logic, red and blue develop very easily (even without my mod), so I slightly strengthened the garrisons to improve the situation in terms of experience and defense (although, the defense is more significantly improved thanks to my mod, where archangels have many resurrection and divine vengeance spells).
Regarding yellow, yes, I understand. But it's strange because it never got stuck for me, but it often got stuck between the portals...
Regarding green, that's exactly what I intended. The island is deserted and has no resources. If you give it to the AI, it won't cause any problems. As for experience and money, I calculated it based on my experience: as soon as I developed and gathered some troops, the blue AI almost wiped out my red AI, so I needed to level up several heroes to level 33 because there weren't enough troops for each, and it takes 7 days to wait.
And yes, the fact that you can't choose a starting player is a bug. I still haven't figured out why (I suspect it's the scripts, although there don't seem to be any).
I'm glad you liked it.
What do you suggest adding or removing?
P.S.: I've updated the maps, you can download them again – now you can choose a hero for yellow and green. I fixed the bug