The ranges part seems fine to me, but my question is: does increasing the ranks reduce the time it takes us to do some tasks like sabotage, extinguish lights, or something in that aspect?
You don't necessarily need to shorten your introduction, you can simply add an icon to skip that part or one that speeds it up, that's to your consideration.
The 4 options you mention are fine, it would be fine if every time we finish with a character, we unlock an option, I still do not decide well in what order (1,3,4,2 or 2,1,3,4).
But I also like to have total freedom by simply ending up with one of the 4 characters, which in any case would be your fourth point, but I would like to know what you think.
If we create a level, it will have a specific place where it is saved, I ask if they can be shared with other people.
Could we increase the rank with the gold we get?
I would recommend that it was just a hiding place, I wanted to go from one side to the other and get stuck.
And other mistakes that I could not capture, which happened when trying several times, in the same mission.