Current questions and answers regarding the map editor.

I dug around and saw that HERO_CLASS_NONE uses an object for a random hero in the editor. If you assign a different class to this object, the editor crashes no matter what.

Added 6 minutes later
I managed to launch the game with a special city. Here are the reasons why it's unlikely to be functional:
1: The map view is gone.
2: If you open the building menu, you can't build anything, no matter what you do.
3: If you open the building menu, the game either freezes or you can't close it.

Added 1 minute later
Now I'll try no_type.