There's not a single person here at Push Square Towers that doesn't at least appreciate the Metal Gear Solid series, which is a testament to the property's quality seeing as we rarely ever agree. As good as the franchise is, though, we don't think that it could ever be described as fictionally consistent – so it's fortunate that a new website has been created to timeline the story in layman's terms.
Launched on the eve of Metal Gear Solid V: The Phantom Pain, this simplistic guide breaks down the events of each mainline game, covering all of the major narrative beats so that you know exactly what's going on. It even excludes events from the franchise's forthcoming sequel, and has been translated into several different languages. Give it a look if you're planning on picking up next week's big release.