Hmm why did I download this? I guess the "two outdoor areas" idea intrigued me. And it is pretty neat! The map is an exercise in vertical use, you move up and down much more than side to side (though that, like much in the map, is somewhat over
done). But the author evidently does not take himself too seriously, what with the liberal sprinkling of powerups. Some, like the invisibility, are placed in a unique and noteworthy manner. Tunnels in the hillside for getting around is a neat gimmick. Really, this isn't a "good" map - but it is a fun map. If the description sounds interesting, download it; there are no big "problems".
P.S. I tried to go into the lava in the smaller room with a battlesuit, but I died and it said I was "in the wrong place". Brushes that don't match the terrain are annoying!