Thanks Austrian Xbox Blog for leaking screens of the latest map from the Mythic Map Pack. Sandbox looks quite similar to Sandtrap, the massive big team battle map included on the disc of Halo 3. However, it seems significantly smaller with a lot room for ground combat. Also, Joystiq noted the spaces between structures, which means this is all moveable in Forge. Likewise, the title would indicate an level created to edit as well. Rumors see the pack coming March 3rd for the usual price of 800 MS Points.