That's pretty much the way it feels. Imagine being on the ship in 'Aliens' You get the picture.
I know, I sound like I'm slaming the game, and I'm trying not too. It's decent, not terrible, just not as good as I'd hoped. I'm about 3 hours worth of play into it, and just getting tired of the same old stupid tricks. You want to scare me? Do something original, not scatter a bunch of armor shards on the ground and make demons pop out of the woodwork when I go to collect them..EVERY time.
At one point in the game, you are in front of a terminal that shows camera views of various parts of the complex. I was 'half' expecting to be switching views when a baddy would jump up at the camera from off camera. Even though I was expecting it, I would have been scared a bit, and it didn't happen. Likewise at the point you encounter a dead marine plastered on the ceiling with a midline incision with his chest cavity wide open. In the dark. When I hit him with my light I half expected him to jump to life, and I would have freaked. Didn't happen. Instead, so far it's been more of the repetitive stuff.
I'd give it 82% out of 100.