Seeing as Onslaught has been put underneath the Vanguard umbrella, and we now have no other way to get BRAVE weapons outside of Onslaught, I'd suggest letting us focus them using Vanguard engrams at Zavala. The weapons could be in the "Legacy Gear" section, and require 3-5 engrams to focus one weapon. That way it's not [i]too[/i] easy, but still manageable, and offer a means to specifically work towards the weapon you want- rather than only rolling the dice over and over by playing Onslaught.