A very nicely done solo level... the first of a series that will make up the first installment Marathon map ever released. Quite difficult, as are most of Tony's maps... but very satisfying. If you can't figure out what you need to do next, go back and check recently visited areas, looking for changes. Great term art (the best use of Bungie art to date, imo). As usual, dive into the melee; wield superior firepower; endure. (Just don't cheat-this one's too much fun...)