More people killed in Halo 3 than alive on Planet Earth

It might only be a game, but Halo 3 is so popular now that the number of enemies killed in action has surpassed the population of the world. File under strange but true: strange that anyone is actually keeping count of such things, and strange that the number is so high. But those numbers not only speak for themselves, they also speak for just how popular the Halo franchise has become.