fans only have a two weeks to wait for the Defiant Map Pack. Microsoft has announced that the new pack will be available on the Xbox Live Marketplace beginning on March 15, 2011. As previously announced, the pack will set you back 800 MS points ($10).
The details of the map pack were revealed a couple of weeks back. There will be three new maps: Condemned, Highlands, and Unearthed. The first two will allow for competitive multiplayer and the final map will support the Firefight mode. The more maps the better, right?
Source: Major Nelson