All great points. Definitely will consider what the player does and does not know going into the next project.
For the camera movement resetting - are you referring to the player camera/view? Sometimes, when playtesting the game, my camera would snap around making it a little difficult to look around. But I was the only one to experience this issue on our team so I figured it might be something to do with my input rather than the game itself. If you experienced this as well though, it may be more of a bug than originally thought.
Also a great idea on increasing volume over time - didn't think of this but it would have helped a lot.
Thanks for the great feedback and for trying out the game!