Hello everyone, I am having a heck of a time doing this challenge. I am bad at aiming in the first place at weak points, but I keep coming across the arrows one-shotting the enemies before I can also land the headshot, them catching themselfs on fire, or flinging themselfs off the land, also there cone of vision seems to be insane and instant detection.

Does anyone have any tips on getting gold in this mission? The other 8 challenges Ive found if got Gold, but this one is besting me, I tried watching youtube videos, it looks to either be very buggy, or glitchy, maybe I am just bad.