Machine Guns had their days in the spotlight already and got nerfed subsequently. Trying so hard for a gun that will never see the light of day in legit play because of those nerfs is silly. Don't get me wrong, Heir sounds like a fun gun, but fun doesn't equate to useful. And I only grind for useful weaponry. Xur will definitely sell it eventually. And that's when I'll get it. 97 shards and the ability to enjoy other games in lieu of grinding is a much better alternative than partaking in Guardian Games. The successor to Revelry was always destined to be a flop.