Video: Metal Gear lore is remarkably complicated and goofy. Michael Huber at GameTrailers tries to quickly sift through it all and distil it down to the main points. I think it pretty much works!
There's a ton of noise in these games (I mean Para-Medic talked about movies so much and that one guy kept shitting his pants, etc.), so it can be hard to remember what matters in the big picture. So maybe this will help you as you prep for The Phantom Pain here in a couple weeks.