All right here we go....
PAZ DIES. Yup, the traitorous girl of Peace Walker dies. But how she dies... well, it's not exactly clean: Skull Face, the main villain who forms XOF and is on the hunt to find Big Boss, Miller and mother Base, captured Paz and did tortures that are so controversial and repulsive: Paz gets raped, is tortured like hell, gets sexed up by a captured Chico (by force, no less) and in what I have to say is one of the most.,.. damn, taboo of all, has two bombs implanted inside her. One inside her abdomen and another,... inside her uterus or vagina, if you need to know. The second bomb is hinted at because of a tape you'll get from one of the prisoners you'll rescue in the game and you'll hear a recorded message about her torture. When you rescue her and Chico in the last mission and get inside the helicopter, Big Boss has first bomb surgically removed from her abdomen with no anesthetics/. when Paz wakes up after the first bomb surgery, she informs Snake that she has another bomb inside but before she could have it removed, she jumps out of the helicopter and then she blows up in mid-air. The impact of the explosion affects the helicopter and then... the helicopter Snake and Chico were in pummels the ground. Snake's fate is known, for he stays in a coma for almost 9 years. Chico? Don't know. But whatever the case, this depicts the downfall of MSF.
Then later we find the USA Gov't downplays MSF's destruction and try their best to cut their ties from them. Oh and a post-credit scene reveals Paz told Skull Face the whereabouts of Major Zero. And t
There you go. That's the ending. Then 9 years later.... Phantom Pain. Oh yeah!