Board Thread:Questions and Answers/@comment-83.253.11.79-20131027104259/@comment-5648742-20140312095234

According to several fans around the web, Punished Snake is not Big Boss, since he has green eyes rather than his blue ones. And this isn't a minor change, his eye color is important, after all, Volgin hated that he used his "deep blue eyes" on him back on Snake Eater.

The rumor claims that this hypotetical Snake is in fact Decoy Octopus. The trailer said "two Phantoms where born", stating that they are two different Snakes, not only Big Boss. Decoy Octopus is Mexican, and he is a master of disguise, having the ability to even change his own personality to be the another person.

Another interesting facts is, that Punished Snake appears only in The Phantom Pain trailers, not in Ground Zeroes (this means, after the incident of Snake's comma, 9 years later). We could assume that Ishmael (whose face is never shown) is Decoy Octopus morphing to Big Bosses' appearance. It's just a matter of time until we unveil this, but this is getting interesting.