Fourth Horseman as some of you may remember was an exotic shotgun with the thunderer perk allowing it to shoot full auto and get ammo back after a kill. This shotgun was old fashioned made of wood and intricately designed and a grimoire that said it was made to hunt the biggest game in the solar system the cabal. It was arc damage for some reason but it was a beast my personal favorite exotic weapon in Destiny tied with Gjally and Thunderlord of course. But anyway I feel with the whole cabal crisis happening they should bring it back and make it good at killing cabal no exclusive nothing just a gun that kills shit.