We just can't quite figure out what to make of Wal-Mart's new Modern Warfare 2 ad. Sure, it's kind of funny, featuring two dudes ragging on one another. It gets across the idea that people can buy the game at Wal-Mart really fast, continuing the store's "fastest way to play" campaign. It does not, however, help us decide if Modern Warfare 2 is something we want to play. G