Master Chief, muscular man, MJOLNIR Mark VI armor, gold visor, assault rifle, tactical shotgun, combat knife, rugged facial features, strong jawline, iconic helmet, metallic texture, detailed bolts and wires, futuristic design, heroic pose, standing, dramatic lighting, intense gaze, battle-scarred, Cortana's hologram projection nearby, ruined cityscape, destroyed buildings, smoke-filled air, warm sunset colors, cinematic composition.