Bungie Reveal Halo 2 Map Details - 26.3.05

A total of nine new multiplayer maps for Halo 2 are due to be released, Bungie announced today.
The nine maps will be available as an XBox Live download, and as a retail disc priced $19.99 on 28 June.

The XBox Live release schedule will be staggered, with 2 free maps due within the next few weeks along with 2 maps for purchase.
The remaining five maps will be released at the same time as the retail disc, and eventually, all nine will be available for free.

Bungie also revealed screens and details of the first four maps, Containment, Warlock, Turf and Sanctuary:

What we can say with some confidence is that we're very proud of the new maps. They're cool-looking, fun, well-balanced and tested to destruction. They offer a wide range of gameplay types and are suitable for some modes you may not even have tried before. We can't wait to share them with you.
Bungie's announcement and map details

Earlier this month, speculation about a new expansion pack for Halo 2 was sparked when the Korean XBox site listed "Halo 2 X-Pack" as coming soon, and was later fuelled by a more detailed listing on EBgames.com

More info:
XBox.com Press Release: Halo 2 Multiplayer Maps in June!
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