Um wtf, maybe mark that as late game spoilers? I'm pretty sure that person was asking within context of what MGS fans would know at that same point (I'm past mission 31 and I didn't know this).
Well, I don't feel to spoiled to be honest. Spoilers, but not beyond what that guy said:
It is not exactly that hidden. I am not even that far but that is what I figured by looking at the character models and their actions. Two trademarks of one of the series most iconic bosses; the mask and psychic powers. And timeline-wise it makes sense for him to be a kid.
As for the man on fire, it is the posture and the bullets in/on him (looking like the ones he played around with in 3) that give a clue And then there is that line of dialouge during the motorcycle chase that says this, I quote: "Persistant bastard. Wait a minute.... Back from the dead huh?" It was very clearly foreshadowed to be familiar character and 1+1 makes 2 in this case. I found it to be somewhat cheap that this was ignored afterwards to be honest, since he was clearly recognized.
Hell, maybe it is still a speculation of that poster still (didn't read thoroughly). But I wouldn't be surprised considering how Kojima ties all his games with recurring characters
As for the man on fire, it is the posture and the bullets in/on him (looking like the ones he played around with in 3) that give a clue And then there is that line of dialouge during the motorcycle chase that says this, I quote: "Persistant bastard. Wait a minute.... Back from the dead huh?" It was very clearly foreshadowed to be familiar character and 1+1 makes 2 in this case. I found it to be somewhat cheap that this was ignored afterwards to be honest, since he was clearly recognized.
Hell, maybe it is still a speculation of that poster still (didn't read thoroughly). But I wouldn't be surprised considering how Kojima ties all his games with recurring characters
Still, I think people indeed should be more careful with giving confirmations and announce the degree of spoiler content in a clear way. Thankfully in this case I figured as much.