Xboxygen got their hands on 4 more screenshots of Infinity Ward's Call of Duty 4. Unfortunately, none of the shots are 360° flybys of a given scene, but it'll do. Still, the game seems to be coming along graphically and these screens have some great examples of the engine's explosion, lighting, rain and realistic smoke capabilities. Are you digging the art direction, as well as the move to modern day combat scenarios in this next installment of the Call of Duty series?