Metal Gear Solid V: The Phantom Pain runs on the Fox Engine.

The statement is true because Metal Gear Solid V: The Phantom Pain indeed runs on the Fox Engine. The Fox Engine is a proprietary game engine developed by Kojima Productions, which was specifically created for the Metal Gear Solid series. It provides the necessary framework for executing the game's graphics, physics, audio, and other technical aspects, resulting in the immersive and visually impressive gameplay experienced in The Phantom Pain.