You unlock them along the way.
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Okay, I've finally encountered a stealth-related sidequest that I actually find annoying.The one where you help the author with the Scarab people, it seems that no matter what I do, they keep spotting me. How the hell do I properly avoid them lol?
The first time you meet the
reporter and the soldiers are all around?
Take the leftmost side and head to spot they want to go to then after the cutscene turn around and go back the way you came (not all the way) until you see an opening in the floor that can drop down.