The blowout post goes through quite a bit of Halo 4 info, from Spartan Ops play stats, to complete summaries of the episodic stories so far, to a teaser for Episode 6.
On Monday, January 21, Episode 6 will drop, as will the "Community Forge Test" playlist, which cycles in community made maps. As a reminder, two of the specializations will unlock for people who didn't get the Legendary Edition or the launch window codes.
In other news, it's a sad day for Halo 2 PC fans (yes, Halo 2), as the game's online services will officially end on February 15, 2013. Let's all pour out a Mountain Dew Game Fuel that day for our fallen brother.
The Halo Bulletin [Halo Waypoint]