Classic Game Room reviews 688 ATTACK SUB for Sega Genesis from 1991. This is a real time military simulator where you pilot a 688 Los Angeles class attack sub against cold-war era enemies from the late 80's. You can also pilot Russian submarines and take on those Yankees! This CGR review of 688 Attack Sub has gameplay from the Sega Genesis Military Simulation series video game, 688 Attack Sub showing 688 Attack Sub game play in action. Sega Mega Drive.