this, but you don't even need an element amplifier on some bosses. The draksis missions (house of winter), is the same, we were trying to kill the minions which was stupid once I figured out headshots on the boss took him down in 3 hits lol.
Also do you get different items? Because I got the same armor twice (Queen's Guard Vest), albeit one had better stats but still, I would really like a leg primary weap
Until you forget you need to kill his guards and have to run to the beginning of the mission :(. I failed on that end hahah