Ever Wanted the Ideal water camouflage?

Well how better than to be an actual whale?

During the war, desperate times called for desperate measures and in a desperate gambit these submarines were developed for the navy and due to their biological shape could avoid recognition, the best camouflage is sometimes hiding in plain sight, these were used to damage ships from beneath and disappear into the deep blue again, with a surprising efficacy

Until one was found, whale populations and these submarines became dually extinct.

Controls:

-Throttle = Engines
-Pitch = Pitch (for diving)
-Yaw = Yaw
-Roll = Roll
-AG1 = anti-bullet-Frill
-AG2 = Cannon Turret