Not really any reason to. Frenzy is infinitely better in PVE, and as for PVP? It would make more sense to use Harmony if it were an option because SMGs back then were garbage. They either had too much recoil, too little range, or were outgunned by shotguns and fusions. Eventually alternatives were nerfed and SMGs found a good spot until they decided to make SMGs like Immortal and put Target Lock on these weapons. Now not only are they all less accurate/ stable than before, but the special reworks are forcing weapons like Recluse to be used as main weapons more if you're not running double primary (likely a sidearm, bow, or AR), which is another indirect nerf to these perks both in activation and uptime thanks to reload speeds. So it's effectively just a slightly stronger RampageX1 more than half the time in PVP and a discounted Frenzy in PVE. In PVP, it would make more sense to use Harmony or Cascade Point on something like Unending Tempest. What they need to do is buff Master of Arms like I suggested ages ago. Cap the damage at 30%, but adjust the buffs by what killed the target: Heavy = 6% Special = 10% Primary = 15%