A new version of the Squalus, it was given both a new set of engines(Though sacrificing realism to allow for submerged operations), she is now able to fire torpedoes, and there is a working periscope. Instructions. AG 1 to enable stern tubes, trim up to move scope up and rotate the scope aft so the "Torpedoes" can move straight, and VTOL up to allow the boat to submerge. AG 2 and trim up to blow the buoyancy pods on the side of the boat to break off, but this will sink her, AG 3 and trim up to get the marker buoy to the surface(At which depth unknown), AG 5(on) and AG-8(off) to get her forward anti aircraft gun to fire and aim, AG 6 and All gun/sub control groups off to allow the deck gun to fire, AG 7 and other gun groups off to allow her aft anti aircraft gun to fire, and AG 8 off/on to allow control of the sub or restrict it.