Battle Stations, Crash Dive and Compartment Doors

[McHub532]

I'm asking for confirmation or correction about a couple things.

Battle Stations
When going to Battle Stations, everyone with a heartbeat (If on duty or not) gets to an assigned position. Right?
Guys laying around reading in the bunks are grounds for courtmartial and excecution on the deck when we surface the next time... right?

Crash Dive
Everyone without immediate duties in the act of the Crash Dive rushes forward into the forward torpedo room to offset their weight inside the sub, right?

Compartment Doors
At what point do the inside compartment doors get closed? When we are under depth/charge attack are those supposed to be closed? How's that go exactly with the doors?

As you can guess; the answers to the questions are likely to lead to requests for improvements.