Master Chief from Halo 4 HD Wallpaper

Master Chief Petty Officer John-117, also known as Master Chief, is a fictional character and the protagonist in the Halo franchise. He is a super-soldier created by the United Nations Space Command's (UNSC) Spartan-II program. He is depicted in his iconic green Mjolnir Powered Assault Armor, with his helmet on and visor glowing yellow. The background is a dark, smoky, and blue-tinted atmosphere, suggesting a space or alien environment.