Things you may not have noticed (spoilers ahoy!)

[cantremember]

If you lock Akers in a room, I think him escaping eventually is an unintentional consequence of his programming. He disappears and respawns closer to you a short while later if you go too far from him, effectively teleporting him out of the room he's locked in.

It is noticable if you are in one of the rooms and he roams the hallways. The footsteps, interference and his howling noise all abruptly stop after he walked past. Then a short time later you will suddenly hear him again and he will arrive from a different direction, physically impossible for him to have went around that quickly.

Spoiler below!

He is set up to be able to move around in the ventilation systems. He does so while you're investigating the lab areas, noticeably before you investigate Brandon Wan's body.

Never noticed that to be the intention, but I noticed that technically he disappears and spawns elsewhere, sometimes it physically doesn't make sense even if that is what they had in mind for him.

Another strange thing in the labs, there are a few sections of corridor that don't lead anywhere except a dead-end, and by that I don't mean blocked paths, but literally no doors or any other provisions were made there, just flat walls, which would probably be a very unlikely design for an underwater station.