So basically a TL;DR of this series based on what I remember from every instalment I've played.>Metal Gear
Relatively simple, Solid Snake goes into the fortress and defeats the bad guys, and he seemingly kills big boss When you get to MGS5 it turns out it was actually your body-double PC>Metal Gear 2
Solid Snake goes to a different fortress and """""kills"""""" the actual ???
It gets revealed that before Big Boss went off to go be a terrorist / Bond villian or whatever he's implied to be in MG1 and 2 they made two supersoldiers based off of him, obviously Snake and Liquid, Liquid takes over an Island and demands a bunch of shit including Big Boss's body Which we figure out in MGS4 they could not have given to him anyway
or he's going to fire a nuke at the Illuminati - Snake gets shanghaied by the army into stopping him but obviously
at the end of the game its revealed that the Army/Illuminati injected him with some crazy killer virus + they try to blow up the base with Snake, Meryle and Otacon still inside instead of letting Snake go like they promised.>MGS2
Snake breaks onto a boat to leak photo's of a new US army 'Anti-metal gear' weapon, Because apparently Liquid had a dead man switch which released the MG schematics online after he died - Ocelot Who we get gaslight the rest of the game into thinking is being mind-controlled by Liquids arm, He's really just acting
(Okay this is where it gets annoying)
Raiden breaks into the Big-Shell, because he thinks
he's a government agent sent to take it back from terrorists. Really…The ENTIRE scenario was socially-engineered to happen by the Arsenal A.I to test the illuminati's new super-soldier training and brainwashing techniques, and Solidus is introduced - Another 'brother' of Snake and Liquid created by the original supersoldier program (Who was also apparently the fucking President at one point???) whose plan is sorta similar to Liquids, He's going to take Arsenal gear, All the Anti-Metal Gear weapons aboard arsenal gear and the nukes on board - And use it to take over NYC and hold the illuminati hostage, And also Solidus Post too long. Click here to view the full text.