i think the devs should make a progression list for themselves that shows what you need to do one after another to get the gear to complete everything. THEN make characters themselves and see if that list is valid.
Because the way i see it, there's a huge gap between insane campaign+challenges, and the insane UMF maps+anything in nightmare. basicly you cant realy get the gear for UMF or nightmare because the gear needed by them is dropped on UMF or nightmare.
(im not sure if survival will drop it but im not gona waste 3+ hours on one map that might fail just cause some1 disconnects and ca