Hello, what is the difficulty level required for the speedrun? Is going to be a level division into easy, heroic and legendary? Thank you.

I can make categories for each difficulty if you want me to. But it does not seem to be a significant difference between the different difficulty levels as far as i know. I would just recommend picking the easiest difficulty level. You are free to choose whatever difficulty you want, i will group them with the others unless someone wants otherwise.

I do apologize for the late answer, i'm not very active here.

Maybe just have 2 categories for the campaign like casual and legendary and don't bother having them for individual levels