So players want a reason to use all the many frames/weapons they’ve built. But also (seemingly) don’t like the random load outs of Duviri/EDA/ETA. So isn’t there a simple solution to this?

What about a game mode with several missions (like hunts, sorties, edt/eda) but where you can’t use repeated load outs/weapons frames?

So using Buston will limit it from the following missions. And using Nova will limit her from future missions.

It could be a good challenge for mid-game players thinking “ok I need to save my good primary for later so will use something worse and rely on my melee” and it gives players with big load outs a reason to not just use X weapon (like Okina, or Burston, etc etc ) every time.

Then on top of that add the various modifiers like in EDA/ETA to make it challenging even with stacked load outs.

You could then add bonuses that instead of giving you a bonus for using a specific weapon or frame, give you a bonus for NOT using a specific weapon(/weapon type) and frame.

I feel like that would give the same challenge of current endgame but without the limit of random weapons/frames.