Microsoft and developer 343 Industries have already outlined Halo 4's map packs, but specific dates for the DLC may have just leaked.

A forum user over at The Halo Council has spotted an advertisement on the German Xbox 360 Dashboard that appears to reveal the dates for the game's DLC map packs.

The Crimson Map pack hits on December 10 (including the Wreckage, Shatter (above), and Harvest maps), Majestic is on February 25 (Landfall, Monolith, Skyline), and Castle hits on April 1 (Daybreak, Outcast, Perdition). Developer 343 Industries has not confirmed the information.

For more on these map packs and particulars on the game's season pass, check out this previous story.