it scores kills on another Luda-class destroyer and two more enemy subs. "Dogfight" Cheyenne meets up with the submarine tender in Sulu Sea for supplies and debriefing. Its new orders are to sink any Chinese submarines and surface ships in contact. While managing to destroy one Han-class and three s, Mackey discovers the existence of a Russian joining the Chinese. "Interdiction" Cheyenne is once again assigned to patrol duty on the Independence carrier group. Tasked to attack a Chinese surface task group from north of the Spratlys, Mackey prevents two Chinese-crewed Alfa-class submarines from attacking an American frigate by sinking them. After successfully sinking the surface task group, it later fends off a Ming-class submarine from sinking McKee before meeting up with the latter. "Ambush" Cheyenne is tasked to patrol several abandoned oil rigs in the Spratlys. It destroys a Chinese submarine depot there, as well as a Kilo-class submarine. "Target: Convoy" Cheyenne is dispatched to cripple a Chinese merchant group entering the Spratlys from the mainland, later managing to evade an attacking Romeo-class submarine. "Patrol" Mackey is informed that the Chinese Navy is aware of his submarine's actions and is deploying all their ships to hunt down and sink Cheyenne. Additionally, Cheyenne is assigned to patrol routine in the Spratlys as well as to destroy Chinese airfields and runways with Tomahawk missiles near the Philippine island of Palawan. Mackey later scores kills on three Chinese-crewed Alfa-class submarines. "The Fourth Patrol: From Russia with Love" After completing its patrol duties, Cheyenne makes a quick stop at the former United States military base in Subic Bay, Philippines. After undergoing weapons replenishment from McKee and maintenance through the floating dry dock Arco, the submarine is assigned to sink six s with experienced Russian personnel embedded within the Chinese crews before they reach the Paracel Islands north of Spratlys. "Rescue" A SEAL Team One unit recaptures the American oil drillship Benthic Adventure from the Chinese in the Spratlys. With the ship now being escorted by the Independence carrier battle group to safety, Cheyenne is assigned to join the convoy and protect the ship from any Chinese submarines in the area. Along with the Independence carrier group, they later ward off several attacking Chinese vessels intent on sinking Benthic Adventure. "Battle Royale" After failing to recapture Benthic Adventure, the Chinese Navy sends over sixty ships and submarines from the mainland to attack the Independence