User blog comment:Gekkou30/No David Hayter So?/@comment-1672596-20130521125021

Well, personally, I don't see any reason for Hayter to continue the voice of Big Boss. After all, he's definitely supposed to be older than before (although I'm surprised that despite pushing fifty in Phantom Pain, loss of muscle mass aside, he literally looks like he hadn't aged a day). However, I'm pretty sure Hayter should at least voice the version used in Ground Zeroes, since from what little we know, it's likely it took place shortly after Peace Walker, and you have to admit, having Big Boss suddenly having a different voice in a short time after Peace Walker would be jarring to say the very least.