As many have discussed, a lot of things are left up in the air in the main plot, and even though I have barely scratched the surface of the game I did something I never did with any other, "Metal Gear," title, and went and read-up on all the story for the game and spoiled myself thoroughly plot-wise. I did this because I had some concerns that the game was going to do something stupid with the plot, and sure enough it goes ahead and does so. I am now aware the ending is quite absurd, and puts the entire story into a new light, but in a terrible way.
Again though, the game-play is amazing, so it ends up being perfectly okay that the story has immense issues. In terms of how much of the game I've actually experienced so far on the Playstation 4 it is an incredibly small amount even if I've put in a number of hours, so I won't post an actual review score. That said, this is one incredible time and I would highly encourage you to check it out.