To Search Fia’s Fortress for Original Pictograms in Afternoon Delight in Fristad Rock at Noon in Deathloop, grab a battery in the room below the sensor in the entrance area and charge it at the charging station. Take it out of the room and to the locked area and insert the battery into the slot to open the door. The first pictogram is at the back of the area on the wall.
The second pictogram is inside of a room near the entrance below the sensor, the same room where you picked up the battery.
The third pictogram is on the bottom of the vehicle in the entrance area.
The final pictogram is at the end of the corridor in the entrance area to the left of the door leading deeper into Fia’s Fortress.