Chapter 3, often referred to as the 'Truth' chapter, contains some of the most pivotal and emotionally charged missions in the game. The narrative twists and turns, revealing the true nature of Venom Snake and the events that led to his current state. These missions are often more complex, requiring advanced stealth tactics, strategic planning, and sometimes direct confrontation with powerful adversaries. Prepare for revelations and intense gameplay.

This chapter mirrors the structural buildup of Metal Gear Solid: Peace Walker by utilizing hidden requirements and recycled missions to unveil the narrative's true canonical conclusion.
The revelation of Venom Snake’s identity parallels the meta-narrative subversion of Raiden in Metal Gear Solid 2: Sons of Liberty, challenging the player’s perception of heroism.