Originally Posted by Unregistered

Do the newer unique missions improve in reward from the older ones? Or is there no difference once you get to the final mission of one type? That is, if I'm comfortable farming the top skill activation mission, do I have any reason to care about putting together another gimmick team (for farming purposes, not the one time clear rewards)?

In general, not really any big changes.

I would not recommend farming any of these missions to be honest.
Only thing exclusive here is honor medals and I would recommend waiting for aqua shadow for those.
These missions do however have a really good ampy drop rate from what I have noticed, so if you are after ampies... maybe.