I can't help but hate you, Bungie. I spent 2 hours of my life trying to solo "First Contact" on Master difficulty (for the "Lone Wolf Triumph"), but I still can't defeat the last boss since most of his attacks end up being one-shots. I thought that being 5 levels before the hard cap was enough and that the rest of the mission had an acceptable level of challenge. The most frustrating thing is being unable to do anything against one particular stupidly balanced boss. This is not only true for the campaign but also for the Legendary Avalon quest. Again, just two mobs appearing at the end of each phase of the second encounter ruin everything. I wouldn't recommend anyone who values their time playing any of the end game content since it seems to be adjusted to people who live in the game.