.MIS File Extension

Mission data file used by various video games; typically installed with the video game software, but may also be created by users with a custom level editor.

Used by Ubisoft Ghost Recon, NovaLogic Delta Force, Sierra Tribes: Vengence, and various EA Sims games.

Contains level data for a Marble Blast Gold mission; may be included with the game or a custom level created by a user; saved in a text format that can be opened and edited with a text editor.

Custom levels should be stored in the Marble Blast Gold/Data/Missions/Custom directory along with the associated image file.