In South America 2014 Seeking information on Liquid's whereabouts, Snake infiltrates the area where Liquid's army is camped and is told to rendezvous with a group of U.S. Army informants posted nearby. On his way to the meeting, he meets Drebin 893, a black market arms dealer who injects Snake with nanomachines that enable him to use the latest generation of weaponry.
At the rendezvous point, Snake encounters the Rat Patrol 01 unit, led by his old comrade Meryl Silverburgh. They are ambushed by Liquid's personal troops, the FROGs. Snake continues on alone to the camp, and on the way witnesses four cyborgs wreaking havoc on a group of armed militia men. Liquid unleashes a signal that incapacitates Snake, the Rat Patrol, and all other soldiers in the area equipped with nanomachines.
As he collapses, Snake sees Dr. Naomi Hunter again, who had injected him with the virus FOXDIE in Metal Gear Solid before fleeing Shadow Moses with Liquid. The only person unaffected by the nanomachine destabilizer is Rat Patrolman Johnny Sasaki, who transports Snake to safety. Via an encoded message, Naomi explains she is being forced to do research for Liquid in South America and asks for Snake's help.
Snake enters the South American locale, and witnesses one of the cyborgs and Vamp turning the local rebels against him. He is then debriefed by Drebin regarding the true identity of the cyborgs: the Beauty and the Beast Corps, four female soldiers suffering from posttraumatic stress disorder with orders to kill Snake. He also explains that the Patriots, a network of AI cores control the nanomachine-laden PMCs.
Snake finds Naomi who explains that Liquid plans to use Big Boss' biometric data to access the Patriot's core AI and take control of SOP. Her tests indicate Snake's rapid aging is genetic, and that the FOXDIE virus will kill him within six months. Before that, however, Snake will start spreading a deadly mutated version of FOXDIE, effectively becoming a biological weapon. Snake and Naomi then make their escape out of the country with the help of Drebin and Raiden, as a cyborg ninja but who is wounded by Vamp during a prolonged fight.
Naomi explains that an Eastern European resistance group possess the remains of Big Boss. Snake trails a resistance member to their leader, EVA, now under the alias Big Mama, and revealed to be the surrogate mother to Snake, and his nemesis Liquid Snake, through the Les Enfants Terribles project. True to Big Mama's prediction, the Raven Sword PMC attacks the vehicles transporting Big Boss' remains.
He subsequently helps Big Mama escape to the riverside, where Big Boss's remains were really kept, and is confronted by Liquid. Unfazed by the U.S. military forces ordering him to surrender, Liquid destabilizes the SOP system again, and easily claims victory in the ensuing firefight. He throws Big Boss's body to the flames, where Big Mama follows to save it.
Snake's fruitless attempts to save Big Mama leave him with a burn scar. Liquid escapes with Naomi, but Hal Emmerich's Mk. II makes it onto their gunboat and reveals Liquid plans to destroy the Patriots' core AI with a nuclear strike using Metal Gear REX's railgun, then substitute it with his own core, and gain control. To this end, he needs a non ID-tagged warhead from the cache left in the Shadow Moses facility.
Back at Shadow Moses Island, Snake reaches REX's hangar and finds the railgun has been removed and Vamp waiting for him, with Naomi at his side. Raiden joins him and kills Vamp. Naomi, revealing she is riddled with cancer and tormented by her mistakes, disables her nanomachines and dies. Snake and Raiden use REX to head out of the collapsing hangar, Snake and the operating REX, is left to duel with Metal Gear RAY, piloted by Liquid.
After both Metal Gears are destroyed, Liquid reveals Outer Haven, a submersible warship ready to fulfill his launch plan, uses this weapon as a ram to destroy Raiden's body and cannon fire from the USS Missouri (BB-63) force Outer Haven to retreat. Aboard the Missouri, Mei Ling, as a U.S. Navy Captain, orders the battleship to intercept Outer Haven.
Using its requirement to surface before launching a nuke, Snake, Meryl, and Johnny board the ship via catapult. FROGs storm in, and Meryl decides to hold them back while Snake proceeds. On his way to the core, Snake is aided by Raiden. The last part of the way, filled with lethal microwave emitters, Snake traverses on his own, getting weaker as he moves along and arrives at the core, where the Mk. III uploads a computer virus programmed by Naomi and Sunny called FOXALIVE which destroys all the AI cores, disables the SOP system and brings the war economy to a grinding halt.
It effectively counteracts the Patriots' upcoming civilian control scheme while preserving the energy and resource networks essential to modern society, while causing a mental breakdown for the attacking FROGS. Snake, having passed out in the core, awakes atop Outer Haven's sail where Liquid Ocelot asserts he is ready to gain control. From there, Snake and Liquid have their fighting combat, before Snake emerges triumphant.
As Liquid Ocelot dies, he reveals himself as Ocelot, he had created a Liquid persona through hypnosis and nanomachines to challenge the Patriots. Meryl and Johnny get married with the former accepting Roy Campbell as her father. Meanwhile, Drebin reveals his origin as a child soldier, as well as his role and Rat Patrol being pawns of the Patriots' schemes, but are now free. Drebin shows Otacon that Rat Patrol Team 01 will rearrange to PatR10T (Patriot).
Raiden reconciles with Rose after learning that her relationship with Campbell was only a smokescreen to protect Raiden's family from the Patriots. Standing before the grave of Big Boss, Snake attempts suicide to avert becoming a biological weapon, but he cannot shoot himself, and he is surprised to see a living Big Boss who explains that the body burned in Eastern Europe was actually that of the third clone Solidus Snake and reveals that the Patriots were originally an interpretation of The Boss' will, founded by Major Zero, EVA, Ocelot, Sigint, Para-Medic, and Big Boss himself.
With increasing power, two rival factions arose within the Patriots' ranks, Zero's who stood for complete control, and Big Boss', who dreamed of a soldier's world. He also explains that Ocelot purposefully used nanomachines and hypnotherapy to implant the persona of Liquid Snake as his own. Over the years, Zero let the newly established AI network assume more control, eventually leading to dependence on the war economy, a vision far from The Boss' original will.
Big Boss puts an end to the last remnant of this false vision by shutting down Zero's life support unit. Big Boss informs Snake that the nanomachines Drebin injected into him included a new strain of FOXDIE, programmed by the Patriot AIs to kill the rival Patriot faction and eradicate the old versions of FOXDIE. Thus, Snake has no risk of becoming a biological weapon, at least before his own death. Big Boss laments on The Boss's final wish, concluding that all she wanted was to leave the world as it is, and then dies in Snake's arms, but not before setting things right with Snake. Taking his father's words by heart, Snake then decides to live out the rest of his life peacefully with Otacon and Sunny, vowing to live long enough to see what the future holds for the new world he has helped to create.THE END
my thoughts about this game is the gameplay action it pretty cool new combat moves this game it 900% accurate i enjoy my game we share this with my friends every monday and i got more to say the game got stealth in it nice kill from behind and the weird things is that when you face liquid leader he kiss you like omg we started to laugh but yeah it a great game we enjoying and we storming in the trophies later we waiting for the new metal gear solid 5 so the story what i wrote that is last stand against liquid not sure what happens next but when the game comes out then ill know and every last thing to say thoughts about the game In MGS4, players assume the role of Solid Snake, utilizing stealth, CQC, and traditional combat techniques. The overhead camera of earlier Metal Gear games has been replaced by a third-person and over the shoulder camera for aiming a weapon, with an optional first-person view. thank you every much.
