first of all only noobs need invisibility in PvP it should not even be allowed in crucible honestly but whatever thats a topic for another time. It's one of those obvious choices that EVERYONE uses and noone wants to "make more orbs " for their team in PvP because everyone is selfish and those extra orbs dont give you much super. so they are the perks everyone uses regardless, you dont even need the grenade just throw the smoke, trap like two enemies and just shoot them and bam easy kills that they cant counter at all. its a cheap tactic but pretty much every nightstalker needs it to be good. and then we have shadestep lol. there is no way to make people stop using what developers have implemented in the game but when everyone is doing the same thing and there is a CERTAIN loadout of perks or what have you, that you MUST use it makes the whole experience stale and frustrating.....and NO it doesnt take any skill to throw a smoke and grenade towards someone's direction to capture them in this "WOMBO COMBO" lol