A recent post by Bungie revealed that, thanks to database programmer extraordinaire Roger Wolfson, games of Halo 2 online have "officially surged over the four billion games played mark". And that"s in a little under two years after the game"s launch.

Wolfson also notes that they"re pretty close to hitting the four million unique players mark. Along with the update Bungie posted a lovely pie chart, which does more than take us back to our school days. It clearly shows that team-based games are by far the most popular.