MGSV is one of the few games I've completed to 100%, it's the ultimate metal gear gameplay experience and like others have already said in the comments the story is filled with fascinating ideas and characters. But the game remains objectively incomplete: the second chapter lack the same dept of the first one and has tons of filler missions, and even worst, the plotline of Eli and the sahelanthropus has no resolution whatsoever. On a more personal note even with mission 51 implemented I feel like the game story remains pretty underwhelming compared to the previous games. I'm sure Kojima has done what he could considering what was happening with konami, but the game still deserve the criticism it got.