Command of the submarine is necessary to carry out an urgent combat mission. The fact is that the territorial waters Jumping Submarine found offenders who have crossed the State border of your state. It is urgent to get close to the adversary closer and a warning signal to foreign ship immediately leave the territory of the country. Swim to strangers is not so easy on a short distance, because the water column share huge concrete piles, located between a short distance across the bottom. Deftly maneuver the ship so as not to bump into the next column, or the task of command will fail.