Hmm... I won't argue, but I, for example, don't know how to play at 160. Because I only know the tactics for early development at 200%, and at 160% - I'm a complete 0. Yeah, yeah....
And about the maps: we can use random generation, but with one condition: no Conflux. (see earlier)
+ banned spells, skills, and artifacts. And I suggest removing Conflux and Necropolis (because Necropolis is unbeatable on large random maps... guarding with level 1-2 skeletons is too strong).... (specifically - flight, door, town portal... diplomacy (maybe sorcery)... ... wings, boots...)
As I understand it, all maps will be created using a random generator... based on a pre-made template, so there will be no possible imbalance. Conflux will be present, but there will be no clear advantage, for example, in artifacts. Also, I don't see the point in removing Necropolis. Either leave it as one of the factions, or ban all heroes with the sorcery skill - even playing as Humans, you can get an uncountable number of skeletons... The issue with diplomacy is clear to everyone; I don't think it's a problem. In general, everything will be rational and balanced.
So, - just show off your skills! ;)