Air Compressors

Can you add air compressors in the game to have actually adjustable buoyancy in submarines. You could have it so the air compressor part needs a fuel tank to keep the air and compress it there and the fuel tank of course needs to be empty or you could add another fuel type which is just air. And also the amount of air you can compress depends on the size of the attached fuel tank to the compressor and also please choose a good sound for it.