He's got the eye patch over his right eye. That means he's Big Boss. But he's smoking a cig. That means he's Solid Snake. Two in one Snake art!
Metal Gear Solid: Skin Shedder [Infographic] - Halloween Costumes Blog
Big Boss in MGS3 seemed rather naive, not innocent >_>
“Quiet, a sniper deprived of her words."
Metal Gear Solid - Solid Snake
Metal Gear Solid Rex from Three A
Metal Gear Solid 3: Snake Eater Screen on http://www.majestichorn.com/2012/03/metal-gear-solid-3-snake-eater-screen/