this is done easiest as an engineer with a glider
glide to the red circle in this screen shot https://i.imgur.com/CbEM0HO.jpg
run up the red arrow in this screen shot https://i.imgur.com/ekLH71W.jpg
and you're now up in that area only legendary cloak wearers can get to...but donot go through this door https://i.imgur.com/RyGxncv.jpg
as itll port you away saying you cant be in here because you are not protected im assumeing there is a way in tho and get pass that teleport
noseing around right now will be back if i have anything of use