Hello,
The one thing that really bugs me at the HoMM3 random map generator, are the portals.
And in many instances you can only see that there are portals on the generated map once you build an army and defeat the guard to see the map farther, which can take an in game 2-3 months sometimes.
I wish that there were a mod that will let you choose how many portals you want the map generator to generate on your map (or not generate at all), same as you can with water on the map.
I think this shopuld be doable with custom RMG templates, though I am not sure due to the lack of experience with them (and because H4 doesn't have such random map function).
____________