Tweaked waypoints so the AI might stop climbing up ladders randomly and getting stuck.
Fixed a broken junction that could rarely caues a state where batteries would be unable to charge from the reactor.

Added automatic closing shutter to the command room
Fixed consoles in weapon room resetting to the wrong sprite depth
Included a version with AI nodes
(Don't expect this to work 100% as even on vanilla subs the AI doesn't quite understand how to use ladders)