I had the same problem. I sat on the bounty since October and then completed it in 2 sessions. This is how I finally got it : Played control only. Crouched to stay off of radar. Only worry about 2 control points and don't worry about catching them all that much. Be patient with your kills, if they got away wait for them to come back to you. Try to get at least two kills for every death. I sat down one day for about two hours trying to see just how many points I could get and finally I had just over 100 points. This showed me it was at least possible. Started reading the boards to see just how I could be a better player and came across all of the above advice. I never sucked at crucible but was never the greatest. It felt like when I was playing to have fun I was closer to the top of the board but when I tried to complete the bounty I was always at the bottom. Played the next day to finish the bounty and had it done in under an hour. Best feeling ever. Just used a slow charging fusion rifle and a machine gun, neither were really all that special. Good luck!