Split-screen.com wrties- "The crux of the entire game lies in the Successor project introduced in Portable ops by character called "Gene" (who was created to become the perfect field commander). The Boss, Naked Snake (Big Boss), Gray Fox/Ninja/Frank Jaeger, Solid, Liquid and Solidus are all parts of this project initiated by the Philosophers and this legacy continues with the formation of the Patriots whom we get to a little later."
