Board Thread:General Discussion/@comment-151.24.190.157-20140218205111/@comment-6431205-20140328212102

If they haven't mentioned it since MGS4, then there's no way we know if he still had his skull in 2015 in the first place. In a future riddled with cyborg technology, I don't see any reason to have a skull made of bones so fragile compared to the standard Carbon Nanotube material. Hell, we know his jaw isn't organic, though it wasn't organic in MGS4 either.

Baaah, I'm digging to deep into this. It's just a small detail.