The minigame for the blueprints should be changed or fixed.
The walking NPCs can see you through walls, which makes it nearly impossible. Also the main character sometimes just stops and gets catched because of that.
Also you get the screen reload for being spotted multiple times without walking, since if multiple NPCs saw you, you get such a notification screen for every one. (Also the ones, that saw you through the walls.)
Yeah. That one is infuriating.
Perhaps making it so you have to be close to the NPCs as well as in line of sight would help.
Having the NPCs do stuff with the equipment for more than just a fraction of a second, and having them being completely oblivious while interacting with equipment would help a lot too.