This is a roomy map. DM-Tetrekk, by OO7MIKE, appears to be some sort of industrial facility, complete with steel beams and columns, dirty water, and killer slime.
You can fit 16 on this map, and have a good time with long-ranged fighting and ordinate attacks. There are lots of beveled surfaces to accent the square walls, plus extra wide stairs that you can get lost on. The framerates were good, no slowdowns were noticed.
The textures helped to convey the theme. The walls were the modern panel look, add to that an abundance of steel and caution stripes. A peek-a-boo skylight allows for a view of millions of stars above, while a touch of concrete and barrels creep into view below.
The bots did a fine piece of work. The only problem I noticed was with the shieldbelt. There is not proper bot support for this goodie, so the bots are oblivious to it. But the item placement was planned out well, with the good stuff, weapons included, hard to reach.
The lighting was very bright, but appropriate. There are mostly white lights, but a few places have some nice colors to balance everything out. The author included music and just a touch of ambient sound.