Current questions and answers regarding the map editor.

What about the sound? Wouldn't it be easier to record sounds as music, since it's easier to integrate into the game?

Well, I did that, and yes, it's simpler, but it's not always possible, and you risk getting a very large map installer.
That is, all kinds of sound effects must be exported.
And theoretically, sounds for videos can be overlaid on the music for that video, but the result is not very good.
I can't say anything about the landscape right now, my poor internet isn't loading.