Ah, Call of Duty – one of my favorite signs of autumn. Just as mornings are broken by the sound of Canadian geese migrating to warmer climates, the tranquility of my living room is interrupted each fall by the coming of the Call of Duty beta period. Modern Warfare II (no, the new one, you're thinking of Modern Warfare 2) is the latest arrival – the 19th mainline game, if you’re keeping score – and it brings with it a return to a modern setting after last year's… return to World War...