Metal Gear Solid 3: Snake Eater HD Edition Tips

Defeat Volgin quicker
The best way I've found of beatin that over-sized circit board is to wait till he stops glowing(stay fairly close to him) use your CQC to floor him then quickly get your out M37 (shottie) and shoot him on the floor. you can normaly shoot twice, secoond time just before he gets to his feet so make the most of this short space of time.
Good luck