Thanks for trying it out! For that room, just remember that there aren't all that many elements in the room. Just try and shoot everything you can see if you are in doubt.
I shot everything I could... The fans, the door, the floor pads.
There's one more thing you are missing.....If you still need help, I'm in the discord. My username is also Leonmail.
Look higher for something to shoot! It's worth it.