When Kojima said that the map size of Metal Gear Solid 5: The Phantom Pain will be huge and 200x times larger than Ground Zeroes, it was difficult to believe him. However, at pre-E3 Kojipro video show they revealed the huge map and also compared it with older MGS games.
You can check it out below: (Please open in a new window)
That’s right, the entire area shown is the map size of MGS 5: TPP. The above area is yet to be revealed. As you can see this is an ambitious project by Hideo Kojima and Konami.