Microsoft today announced that the first multiplayer expansion pack for Halo 2 will be released on June 28th. The multiplayer expansion pack will include 9 new multiplayer maps. The retail package will contain two special videos: an animated side-story from the single-player story in New Mombasa and a mini-documentary that includes interviews with the map designers, combat strategies and fly-throughs of the new maps. The retail pack also allows gamers who prefer offline play via system link and split-screen to upgrade their Halo 2 experience with new maps. The retail version of the Halo 2 Multiplayer Map Pack carries a suggested retail price of $19.99 (U.S.).
You can also get the maps via Xbox Live and as a special bonus for Xbox Live subscribers, four of the maps will be available for download in late April. Two maps, Containment and Warlock, will be presented by Mountain Dew at no cost to Xbox Live subscribers. Two additional maps, Sanctuary and Turf, can be purchased via Xbox Live for $5.99 (U.S.). To complete the Map Pack collection, subscribers can download the five remaining maps on June 28 for $11.99 (U.S.).
For more information on the map pack and the individual maps themselves, check out Bungie's Official Website.