One of the biggest talking points surrounding the impending launch of Metal Gear Solid V: Ground Zeroes is the game's relatively short length. Hideo Kojima explains why that won't be a problem in this video.
The crux of his argument basically hinges on the fact that Ground Zeroes has high potential for replayability, as the dynamic nature of the game means each playthrough is different. Kojima also expects players to use the capabilities of modern consoles to continually craft better runs of each mission, essentially helping one another become more and more perfect through sharing. All of this just a prelude to Phantom Pain, which he approximates to be 200 times bigger than Ground Zeroes.