Going through an extended Fetid water, defeating Lobber and earned an S rank ... https://www.youtube.com/watch?v=lKsN53M4dTQ

In 1986, Richard Marcinko (voiced by Mickey Rourke), a U.S. Navy SEAL, is sent on a classified mission into Unggi, North Korea, with two other SEALs, to retrieve intelligence from a North Korean mole on ballistic missiles of an unfamiliar design that North Korea is supposedly in possession of, as well as to recon a factory that is allegedly developing the missiles. Shortly after touching ground, Marcinko's unit successfully takes out a Korean People's Army patrol, but one of the North Koreans suffers only wounds and manages to pull the pin of one of his grenades, killing Marcinko's team. Admiral Travis Payton (voiced by Neal McDonough), the commander of the operation, demands that Marcinko abort, but he refuses, saying he intends to finish the mission. After fighting through Unggi, Marcinko discovers the mole was killed. However, he finds the intel in the mole's apartment room on missile launchers that have been developed in Unggi. Marcinko is then ordered by Payton to disable the missile launchers by any means necessary. Marcinko enters the facility that is producing the missile launchers but finds that only one is present. According to intelligence received from Payton, the rest of the launchers are being moved out by sea. After destroying the missile, Marcinko heads to the Unggi harbor, and sees that they are actually being sent out of Unggi by train to the Soviet Union, not far from Unggi. Marcinko boards the train and destroys it as it crosses the border. Marcinko enters Soviet territory and gathers intelligence that the ballistic missiles were of Soviet origin, not North Korean. Marcinko also notices that the remaining ballistic missiles were moved out of North Korea to a palace in the Soviet Union. Marcinko insists on going after the missiles, but Payton warns that an attempt to go after the missiles will not only result in Marcinko's court-martial but even war between the United States and the Soviet Union. Marcinko dismisses these warnings and goes after the missiles. Marcinko enters the palace where the missiles are located. He contacts Payton, who threatens to have Marcinko court-martialed for disobeying orders. Marcinko suggests that he found proof that the Soviet Union created a missile defense program aimed to deter any U.S. nuclear launch against Soviet territory. This program was similar to the real-life U.S. Star Wars program aimed at deterring any Soviet missile attack on U.S. territory. Marcinko launches a missile at the palace, destroys the missiles located in a bunker under the palace, and escapes the palace. Marcinko then goes to a dam to disrupt electricity to a Soviet submarine base. Marcinko then heads to the submarine base with the purpose of destroying a submarine carrying the remaining missiles. Marcinko escapes onto a patrol boat with Navy SEALs aboard that were sent by Payton to help Marcinko. Marcinko hands over a computer chip to the commanding SEAL of the boat and tells him that it is evidence that justifies Marcinko's actions that is to be presented at his court-martial. ... https://www.youtube.com/watch?v=3upX-G96jT8