Sincerally i don’t know how the game manage the favorite missions,
but i think that it memorizes a code that allows it to recreate the waves easilly. (Like Minecraft seeds)
I think that the addition of control that code would be useful for both players, sharing their favorite levels with others, and developers (example: “there is a problem on the mission cordinates: gigggu567m”)
It Minecraft can handle this system (if it’s compatible with universe) why not adding it?
I hope I made myself understand, not being a native English speaker I had trouble writing this post. I apologize for any errors. Thanks for the attention