Xbox 360 owners have committed mass Covenant atrocities to the tune of 10 billion aliens killed in Halo 3's story driven campaign mode. Covenant-hating Halo fans reached that milestone this weekend, Bungie announced.

That statistics comes not long after the announcement that Halo 3 fans have played one billion multiplayer games, another indication that Halo is, like, pretty popular with the kids.

Billions of things are a little harder to wrap one's brain around than, say, dozens or thousands. To wit, Bungie's breaks it down in more digestible terms: "Crude math places the estimate of daily Halo 3 Covenant kills, launch-to-date, at over 17,500,000. That's 730,000 killed per hour or 12,000 Covenant troops killed per minute."

Congratulations, you little genocidal maniacs.

Campaign Kill Count: 10,000,000,000 [Bungie]