In 2006, Konami, in collaboration with Hideo Kojima, released a unique entry in the Metal Gear series for the PSP: Metal Gear Solid: Portable Ops — a story bridging Snake Eater and Peace Walker, filling in the missing chapter of Big Boss’s army origin.
1970: Rebellion in San Hieronymo
Six years after the epic events of Snake Eater, Naked Snake, now known as Big Boss, has withdrawn from military life and lives in isolation.
Suddenly, a group of rogue soldiers from the FOX unit, which Snake once served, instigates a rebellion on a remote island called San Hieronymo.
The new FOX commander, a mysterious man named Gene, aims to threaten the world with a nuclear arsenal and build a loyal private army.
Only Big Boss — a man forged in the fires of betrayal and war — can stand in his way.
Allies from the Past, Birth of a New Brotherhood
During his mission, Snake encounters not only new enemies but also unexpected allies:
- Roy Campbell — a young, intelligent officer who will later become Snake’s commanding officer.
- Null — a ruthless professional assassin with erased memories, whose past is entwined with Snake’s fate.
- Soldiers from enemy forces who, through negotiation and trust, join Snake’s private army.
The revolutionary recruitment mechanic allowed players to build a private army from the remnants of defeated foes — a defining innovation of the game.
Confronting Gene and the Truth of the "Perfect Soldier"
In the climactic battle, Snake faces Gene, leader of the Perfect Soldier project, who claims to be the rightful successor of The Boss.
But it is Snake who proves that loyalty to truth, courage in decision-making, and the ability to inspire others make him the true leader.
The Birth of Outer Heaven
In the end, Snake defeats Gene and transforms the remaining forces of the rebellion into the foundation of his own private army.
No longer a soldier for governments, he now commands a force loyal only to him and his ideals — planting the first seeds of Outer Heaven.
Why Metal Gear Solid: Portable Ops Matters
- Connects the narrative between Snake Eater and Peace Walker
- Introduces key characters like Roy Campbell and Null
- Tactical gameplay and soldier recruitment system, later expanded in the series
- Marks the beginning of Big Boss’s journey toward independence and the creation of a private military superpower
- A story of sacrifice, camaraderie, and leadership forged amid distrust