To get the achievements, you need to load mission 9, then collect all the notes with audiograms, paintings and the last doll in the treasury.
Installation:
Path to saves C:\Users\(your username)\Saved Games\Arkane Studios\Dishonored2\base\savegame
//The "Saved Games" folder looks like a chess piece and is located at the bottom of all folders//
I've played through this far with cheats, so you can also complete the "Good Funding" and "Occultist Carver" achievements.
Author: Mench_0