There are a total of 4 recording in Ward Prime that give you some backstory to subject 2923, this is the second area of the DLC. You will need to progress a certain amount forward between each recording. You will need to shoot root obstruction, obtain maintenance access key, start the reactor and obtain the Ward Prime key card to obtain all of these.
As far as we know they always appear in the same location, despite the games procedural generation. What we do know is that only the host will get the achievement, either that or my xbox is bugged.
We made a short video showing you the locations of the recordings. Time stamps:
- 0:09 - RECORDING #1
- 1:01 - RECORDING #2
- 1:26 - RECORDING #3
- 1:52 - RECORDING #4