A four-story house, with a yard. Overall, this is quite impressive. The attic is great, and the sniper positions outside are pretty cool. The interior (first and second floors) are a bit cramped... but what would you expect, running around a house with weapons of destruction? Check under the stairs in the basement for a Bungie-esque joke.

Twelve levels. These tend to be huge, open areas, with smaller side areas. Texture choices are odd, in some cases (and overabundant in most). The levels seem to get better as you go higher in the map set (although I encountered a freezing bug in the last level). A couple are extremely high in alien count.

This drag-n-drop film fixer will synch a film with the map it was made from. Good for those times when the proper map is present, but Marathon refuses to recognize it...

A two-level solo scenario. The first level is quite playable (assuming you choose the proper direction to navigate the loop... otherwise, it's a bear). The second level is hellish. Lots o' baddies, which would be fine, except for a framerate-sucking HUGE water-filled room that crushed a Q800 on Major Damage... Still, it's worth the effort, because it's just plain fun. The AI is a no-nonsense guy, but if you listen to him, you'll get around...