Metal Gear Solid 5: Ground Zeroes campaign will be incredibly short according to an article in Game Informer. By on February 4, 2014 at 2:26PM PST ...

Konami has confirmed this morning that Metal Gear Solid: Ground Zeroes and Metal Gear Solid V: The Phantom Pain will be two seperate titles, released at two seperate times.

Kojima said that Ground Zeroes was originally conceived as a prologue to MGS 5, introducing players to Snake’s vengeance. The overall theme would be that of retribution.