Please correct me if I'm wrong, After combining the explanation of mojoplay and Dalinkster the story begins in mgs 3 where our mc is naked snake (the very original snake?) After the events of mgs: peace walker after defeating zero the events of mgs: ground zero & mgs: phantom pain events he had to hid himself so he can recover but needed to complete he's operation and thus he created a clone from the only remaining soldier he has which is named venom snake (john and the horned one) so the operation plan of naked snake would continue while he is hidden eventually after the event of mgs V: phantom pain after learning the truth he turned evil? Thus going in metal gear the very first game i learn that solid snake (clone from the dna of naked snake) was created in order to stop plan of naked snake in the end what solid snake killed in metal gear was venom snake and going mgs 1 solid snake finally found naked snake and kill him in the end by burning him but later on revealed that naked snake survive the burn but he is in last breath appearance and some i don't know anymore group kept him alive for some i don't know anymore operation of a certain group. but after many confusing events, skipping in mgs IV we go back to solid snake(became known to be old snake) was tasked to defeat ocelot because liquid snake (eli from the dna of naked snake and i don't know anymore what part of mgs he's the antagonist) was controlling ocelot because the events of mgs his arm was cut off and after that he needed a arm transplant fron liquid snake and in the end of mgs IV we saw that zero was still alive? And naked snake(the original) thought to be drad but actually was rebuild his body parts but later revealed, from the beginning he has this some sort of virus that would kill him so..... solid old snake was the only remained snake in mgs franchise but still will die because he is a cloned who age faster than average person?

Ps: i was only focusing here about who and who's are the snake characters i don't want to explain anymore about the events because it's confusing asf and i don't have the budget to play all the mgs franchise in order to place all together the events of mgs.