Blastacular Pack
From Halopedia, the Halo wiki
The Blastacular Pack is a downloadable content package for Halo 2. When downloaded, it allowed players to access the maps Desolation and Tombstone. It was released on April 17, 2007 for $4.00 and re-released on May 7, 2007 (still for $4.00), as several glitches discovered in the included content had been fixed. The Blastacular Pack will be made permanently free starting the first week of July 2007.[verification needed]
The Blastacular Pack takes up 142 MB on the Xbox 360's HDD.[verification needed]