Alright, apparently some people are confused about how the buttons work. While I am not the creator of this map, I know how it works just by messing around. So here's what everything does, and what everything means.

=== MAIN ROOM ===
There's a fish on a spring that you can press [USE] on to bobble it, and there's some door buttons on the walls.

=== MONITOR ROOM ===
The main panel in the middle is the monitor, it shows what the submarine's camera is seeing. Press the "Camera Toggle" button on the right side of the monitor to activate it. The button on the left of the monitor that's lit up at the beginning starts the actual submarine. The "DISTANCE" meter shows you how close you are to the next point of interest. When all three are lit up, hit the camera button. The meter on the wall to your right shows you how many points of interest you've recorded, out of ten.

=== POWER ROOM ===
Probably the most important room in the map. There's a big green bar to the left of the breaker panel, that's how much power you have left. In the actual panel itself, there's six buttons. The power will start to deplete when you start the submarine, so you gotta keep it alive. To keep the power on, start by pressing the bottom-most button on the panel. Two buttons will light up, hit those buttons. Two lights will be lit on the meter on the bottom-left of the breaker panel. Hit the bottom button again, and do it until all six lights are lit, then hit the green-lit button to the left. This will regenerate SOME power. If the power runs out, all the lights go out and the camera stops working. To get everything back on, just get the power back to full, at which point everything will reactivate.

Hope this was helpful to anyone confused! I hope this all makes sense, since this is a pretty different map to anything else on the Workshop.