The one thing I'd note is that Murcan style speedQBsoft is likely immiscible with bringing casual rentals into the game.
Imagine the experience you'd have playing with some budget rental hi-cap versus Captain Spamsalot yeeting 20 rounds a second of tracer at you with that trembler-trigger.
Even if he does take his hits, even if he doesn't end you rightly with the mandatory 5 round run-past, your day is going to consist of you getting pumped in exactly the same way in exactly the same arena, over and over and over again.
You'd have to be really invested in order to stick with it.