Call of Duty 4 - Modern Warfare has to be the best of all of the Call of Duty games because of the multi-player maps and weapons. Although it does not include the ray gun or flamethrower like Call of Duty 5 it still contains many modern weapons that the other games do not. Also the map on Call of Duty 4 - Modern Warfare are much better. I specifically enjoy the shipment map. It is a small area map in witch an all shotgun match can be highly entertaining. Also there is a map with a helicopter crashed in the middle. The fun of sniping from the high towers in the corners of the map can not be beat....