Killtacular Pack
From Halopedia, the Halo wiki
The Killtacular Pack is a downloadable content package for Halo 2. The pack allows players to play on Sanctuary and Turf. It was released on April 25, 2005 for $4.99 and was made permanently free on June 28, 2005. The Killtacular Pack content is also included in Halo 2 Multiplayer Map Pack and the PC version of Halo 2.
The Killtacular Pack takes up 99 MB on the Xbox 360's HDD.[verification needed]