It simply doesn't work. Because grenade launchers are largely unreliable. Plus it encourages people to either exploit the game via kill lobbies, pay to get the quest done, or just camp heavy ammo instead of actually playing the game which may ruin others experience who may be trying to win a match. Hopefully bungie acknowledges this and changes the quest Edit: mayhem is up Currently running 3 grenade launchers with tether hunter. And I gotta say, it still -blam!-in sucks. Shot someone at half health that was tethered with a direct hit, didn't get the kill they survived with like 1hp. -blam!- this quest, -blam!- grenade launchers I'm done.