You mean he briefly fought Volgin in a fight where we don't know what happened? And then later after "getting his ass kicked" he still took on Naked Snake who was armed with an RPG-7 and Snake still couldn't finish him. It took The Sorrow (speculation) throwing down a lightning bolt and the rounds on his chest exploding to finish off the Colonel.
Well, people have contested the Volgin tanking RPG-7 rounds. I just thought I’d present the facts.
Fact 1:
Before the second part of the Shagohod battle, we see Volgin’s face.
Fact 2:
Before the second part of the Shagohod battle, we see what weapon Snake is aiming at him:
Fact 3:
The only way to win this boss fight is to attack Volgin himself.
Fact 4:
We see what weapon Snake is holding after the battle.
Fact 5:
Volgin’s face after the battle.
Fact 6:
In newer versions of Snake Eater, an extra scene was added with Snake clearly blasting Volgin with an RPG round.
YouTube video
So there you go. We know what weapon Snake was using. We know Volgin was damaged during the fight. We have an added scene clearly showing it.
Volgin can take blasts from an RPG-7.
Proven.
I don't doubt it. Volgin is durable as hell but it doesn't mean he can't be beaten by the two. Snake did beat Volgin fairly badly to the point he was asking for help. He did have time to recover in the shagohod but it's hard to determine how much he could've taken since as soon as he got hit with that RPG it was like lightning bolt and WTFPWNAGEH4X0RZ!!!