If that is all you can do in the game, then that is the problem to fix…
There aren’t too many people grinding solmiki for 2x or more of the same weapon so they can have better chances to upgrade, they are just forced by IMC to pay for diamonds to up their chances which sucks.
How about this:
- Keep the current system for dropped weapons like blue/berthas/primus
- Make legendary equipment indestructible, but only tradable via Team Storage (bind on pickup a la WOW)
The grind for legendary equipment is just too much for most players to handle and it turns them off to the game, and when you finally get the legendary equipment you are then bound to luck as to what upgrade level it is. It is soul crushing to see all the time and effort go into the toilet because of RNG.

Leticia Cubes