Only way is Hatchet with berserk, other way you get hit by hit stunlock by ~20 corrupted/lost man gang. And when you manage to kill them, when you fighting with last one, the other start respawn again.
Clear the fort for main quest kinda impossible, if you solo or not hatchet/ice, only way is group all mob and berserk or icestorm it. Otherwice due to short respawn rate while you kill second/third mob, first will respawn behind you.
Why “Gusting Wing” exist in Whirlwind tree, increasing number of rotation to 7, if i can’t do even 1 sometimes???