it's November, 1974. you are an experienced officer in the Soviet navy. you are given command of a brand new attack submarine, K-73, Viskhod aloyvskov. the world is on the brink of nuclear war. can you intervene in time to stop the nuclear holocaust? or will the world be obliterated by powerful weapons?

a Russian MiG-29 fighter jet appears flying next to your F-15 fighter jet. you must fight for survival in an air battle for supremacy. and remember, no friendly skies.