Really hard is not impossible. You have to decide on investing on the bounty or leave it alone, simple as that. Mind that the gun is really good after the patch. I've suffered for both of mine in silence along with three other fellow clan members. When playing on too laggy servers or loosing badly, I usually left the match. Takes an awful lot of stomach and patience. Ah, the last phase is after the crucible one, and I could only kill Xyor with friends. Good luck!