3) Bug with empty dungeons and Mullich - replace him with another hero.
It would also be nice if they adjusted the dungeons so that, for example, if you encounter a 30th-level Necromancer, their skills are changed only after they are leveled up to 30.
6. In the Tavern, change the building tree - make mages a dead-end branch, after golems, allow building giants or naga directly, after naga - giants.