Activision's Call of Duty franchise occupies a fascinating place in the gaming landscape. It is the world's biggest-selling annual series, yet each year offers only incremental improvements. It is beloved by millions, yet derided by many as well. Its production values bring out the best in video games, while its online multiplayer community often brings out the worst.
It is an enigma. And in the eight years since the first game in the series was released, in many ways it's come a long way. And in other ways, it hasn't gone very far at all.