Hideo Kojima has shed some light on what The Phantom Pain offers compared to Ground Zeroes.
As some of you may already know, Metal Gear Solid V is made up of two games. Ground Zeroes comes out first in March 2014, while The Phantom Pain might come out in 2015.
Kojima said the following on Twitter about both games:
GZ is both a prologue of MGSV story & at the same time, a tutorial of new MGS which transits to sneaking simulator. W/ that said, GZ has comparatively small field as compare to main game (ie The Phantom Pain) (which is hundreds of times bigger) w/o time change. But each mission offers different time zone w/ different play.
Ground Zeroes looks like a fun game in itself, but it sounds like The Phantom Pain is the main Metal Gear Solid V game.
