The fact that Miller continues to help Venom Snake and Big Boss 's sons to defeat the real Big Boss introduces the plot for Metal Gear Solid .
While Ocelot remains supportive , Miller is disgusted at his former ally 's deception , but agrees to continue assisting Venom Snake and Big Boss 's sons in hopes of contributing to the real Big Boss 's downfall.
Metal Gear Solid V-COLON- The Phantom Pain