I am finding that the order of the Progress Missions is a bit wonky. It looks like the idea was to break up the missions into three or four different types of missions and spread them out, with the unintended result being that very hard tasks are separated by very easy tasks that most players would have completed early on, e.g. completing a certain campaign mission on Hard. Nothing is wildly wrong here, but it just seems like they could be reordered more intelligently to guide new players along the path to the endgame. Putting more of those easy tasks upfront would help players prepare for the more challenging missions, rather than having a bunch of easy stuff sitting uncompleted behind a blocker that they won't be able to do until end game.