Open/closed Torpedo tubes:
There is an undocumented hotkey, that floods/opens a torpedo tube. This is confirmed as one watch the outer torpedo door open, but without any animation. It either flips open or closed.
Afaik, when this hotkey is pressed, the tube will flood/open, but the message stated is "Closing tube1". This is obviously wrong.
I can open the first tube, and eventually cycle the rest of the tubes in sequence and end up having them all open, but it's a mess and nothing is intuitive beyond this other hotkey that cycles between the selection of torpedo tubes.
I do not know if having opened the torpedo tubes shaves off time when firing a torpedo.
There is also a bug it seems with the outer torped tube opening. It seems like a circular shadow is cast onto the outer door that swung inwards. Anyway, this circular black shape looks odd and doesn't make any sense really.
Some mods are in use, but I don't think they are interfering.
Edit: It's the same with shadows turned off or on apparantly.