Typically, in modern FPS games, the actual mechanics of how silencers work in PvP is to sacrifice weapon range/damage while allowing you to be harder or even impossible to detect on enemy radar while firing a silenced weapon. The Destiny radar already sucks. We don't need it to suck more, plus, I'm not sure what kind of benefits a silencer would have in PvE when considering how mobs spawn. It'd have to be a cosmetic upgrade and little else.

It's actually not a terrible idea in concept although I feel that the way mobs spawn in Destiny wouldn't really play into that concept well ya know? Compared to a more tactical game