Sea of Death — Richard P. Henrick

COUNTDOWN TO DOOMSDAY
From a small island in the East China Sea, a terrifying force from which there seemed to be no escape, was about to be unleashed. Code-named “Death Wind,” it was the ultimate biological weapon … and now it lay in the hands of a Ninja warrior, whose mad dream of Japan's rebirth as the world's mightiest military superpower was about to become a reality. Only an obsolete diesel-powered submarine manned by a crew of specially trained computer-oriented nuke submariners could stop the deadly messenger of doom.
In one daring gamble, the engineering marvel of another time would be up against the high-tech weaponry of the future that would decide the fate of the world!