Open world-ul a fost dorinta lui Kojima de mai multi ani, voia un joc cu infiltrare cat mai "free".

De pe Twitter-ul lui:
MGSV TPP is a free infiltration game w/ open world concept before a stealth game. Unlike linear games, the feels of stealth differs depending on the taste of player, strategy, equipment and ability. But the prologue offers tricks to feel the evolution of Metal Gear & the game.