Has anyone come up with a viable alternative to the Helicopter medic theory for Ishmael?
I'd propose that Ishmael is Big Boss's hallucination. It only makes sense given that he's also hallucinating a giant flaming Moby Dick in the sky swallowing a helicopter. In fact, you could say that Ishmael is Big Boss's carnal drive to survive, escape, and get revenge--to weather the torrent which his life has become (like Ishmael the boat captain in the actual Moby Dick book). One might even see him as the embodiment of Big Boss's "Phantom Pain", Ishmael being a "Phantom" of sorts; I believe Ishmael could possibly be considered one of "Those Who Don't Exist" as featured in the original trailer: a resultant hallucination of Big Boss's trauma and the child Psycho Mantis's influence over him in the hospital scenes. The part of him struggling to survive would be considered Ishmael whereas those trying to destroy him would be the other fiery phantoms. Perhaps, his internal drama is even layered in with those actually trying to destroy him in those hospital scenes, as well.
What do you think about my theory?