After the server crashed I lost my original thread which fortunately I also posted on BGG here:
https://www.boardgamegeek.com/article/24597969
Just to give you a summary, I tested new rolling system and made probability test which seemed better.
But afterwards somebody asked to write more about my game, to realize by myself that another approach in keeping individual units is not to abstract them in battles but rather to create some sort of area of majority games with less territories so that it does not become as much fiddly as with smaller territories.
Then combat could be resolved like with the original combat system, since less territories will create less battles, and it could also be an advantage for having a simple AI script.