Not to difficult as there is a very short way to Koller's safeplace (4:25). Approach from the rooftops and drop on your right and either hack the keypad or use the windows on the rooftop of the little house with two guards in it to drop in. Then use the vent in the bathroom and punch your way through the secret right turn to end up right before Koller's safeplace. Almost without having to avoid guards.
No special achievements here. You receive one for getting an experimental Augment which you cannot miss.
-----------
This is my walkthrough of Deus Ex: Mankind Divided on "I Never Asked For This" difficulty (i.e. Hardcore, Permadeath, whatever you want to call it) inclusive of all missions and side missions in full stealth for achievements like Pacifist, Foxiest of the Hounds, Ghost, and more.
Questions and feedback are welcome in the comments section.
At present, nekov4ego has 169,225 views spread across 39 videos for Deus Ex: Mankind Divided, with his channel currently having around 18 hours worth of content for Deus Ex: Mankind Divided. This is 14.67% of the total watchable video on nekov4ego's YouTube channel.
26