Happy with this for now \o/
Played on the pre-gold edition version without expansion pack. Same dosbox settings as the gog.com version (cycles=max).
Turns out on the old version of this game you can manipulate the RNG-seed that's used for map generation. Whenever you launch the game you get the same "base" RNG.
By first loading up the "Mountain King" scenario, I get this specific map for the first campaign mission every time. If I do everything the exact same way I'm able to maintain this RNG until the third mission, in which the AI tends to change things up towards the end. Later I restart the game twice to get specific maps for other missions.
02:30 First Blood 03:59 Barbarian Wars 11:35 Slay the Dwarves 13:21 Turning Point 17:21 Rebellion 18:55 Dragon Master 25:03 Country Lords 28:25 Greater Glory 30:37 Apocalypse