I normally complete this with my hunter by using weapon of choice primary I find Atheons epilogue useless in crucible I normally use my hawkmoon or vision of confluence I know I won't get kills towards the bounty but it will reduce my deaths. For secondary I use my pradyths revenge sniper I'll just camp it out as I want to avoid death as much as possible. For heavy I use my corrective messure machine gun. All I can say is be patient and try not to run around too much specially if you don't play crucible too much to avoid loosing points. Also if you get a small map I would suggest you either leave the game or try to avoid up close combat well if your sniping at least.