I really don't understand this game...
So I have my Global difficulty set to Hard, just going around collecting materials and stuff. Then I played a mission and set it to Challenging. It said Challenging on the floaty mission window at the beginning of it. Even had the Challenging icon in the upper left next to the map. I get all the way through the mission thinking it was set to Challenging, but at the end it said Hard. I don't understand this. Do I have to have my global settings set to the same difficulty if I want to up the difficulty of missions? Or did it just change back to my global setting at the end and I overlooked it?