Bungie is out of the Halo stat-tracking biz, but says "so long and thanks for all the fish" with one last nuke of information. Since 2004, over 20.8 billion Halo matchmaking games have been played, with Halo 3 supplying a majority at 11.5 billion, at around 221 million games averaged monthly.
The studio gathered all the data up in a mega infographic, covering stats of the great battles between humanity and The Covenant, and Red vs. Blue. At the end of Bungie's oversight of the online war, the body count exceeded 136 billion, with over 43 billion assists.
Having moved on from Halo, Bungie is currently in a 10-year contract with Activision to produce ... something.