Dvader said:

GG this is the short short version. Patriots are the characters from MGS3, now all that is left is an AI that is controlling the info of the world. Snake almost dies trying to shut down the AI, he does and fights Liquid Ocelot to the death, Ocelot dies due to Foxdie. Snake's foxdie mutates and in a month or so he will infect anyone near him killing them instantly so he has to die. So after the game he is at Big Boss' grave about to shoot himself when Big Boss shows up, even though he was dead,  with a man in a wheelchair. Big boss says the body they had was Solidous not him, the man in the wheelchair is Zero who lead the Patriots. He says how they had a difference of opinion on what the Boss stoof for which lead to their war. He lets Snake know that Ocelot was good all along and he went under psycho therapy to be like Liquid to trick the AI into revealing itself. Also Snake got an injection earlier which actually changed his foxdie, now it targets members of the Pats, meaning Big Boss is about to die. Big Boss kills Zero by shutting off his life support and tells Snake to live your life. The end.

Well, that's just like, your subjective opinion, guys.