I think Bungie needs to implement a reward emblem for completing all lost sectors on master difficulty. It's an impressive feat and the fact you have to wait for all rotations, A reward emblem is justified.
It really isnt that impressive. Sorry to sound like an elitist but it isnt. I can run a lot of them in avg 4-5 mins on master. And the more longer ones with annoying champion placements maybe 7/8 minutes on avg.
All you need is a decent loadout and common sense about what ads to engage from what angles.