http://www.bungie.net/Forums/posts.aspx?postID=15415295

Complex 388 is a close combat map featuring a series of enclosed rooms spanning across three floors. The map is completely sealed in with no way out.

As screenshots would not show too much due to the many twists and turns of the map, here is a text walkthrough.

First Floor.
Starting at Red/Defense bade on the bottom floor, you come to a fork. Left takes you to a loop that comes back to rejoin the hallway. In the loop is Shotty, Needler, trip mine, and deployable cover. At the right hand path of the fork (also where the loop meets back) is a grav lift leading to the Cage (more on that in a moment) and a turn heading to the stairs to the second floor. A few items and a Brute shot are at the bottom of the stairs.

Second Floor.
The first thing you see upon arriving on the second floor landing is the Cage. This cage can only be gotten in from the first floor, but allows people on the first floor to fire on the main hallways of the second floor. An over shield is held in the cage. The path forks at the landing again, and heading right past the cage will lead to Blue/Attackers base. Left will lead you to a room above the shotgun room. The cage floor allows you to shoot at people on the floor below you. Turning right in this room leads down a short tunnel to the sword room, where the path forks again. Left is the Central Shaft, an area that has openings on all floor and lets you drop from the upper floors to the below floors. Right from the sword room is a grav lift leading to the third and topmost floor.

Third floor.
An open space greats you on the third floor, with some weapons and a regenerator. Following the path leads to the third floor hallway. At the end of the hallway is invisibility and a Gravity Hammer, as well as the top of the Central Shaft where you can drop down to rain invisible hammer death to those on second and first floors.

Over 8 hours of work by me was put into this map. It has been play tested in parties of 2, 4, and 16 on Slayer and Infection. All gametypes are supported. It has been tweaked several times, getting weapon placement just right for the map.

I have had close to thirty people playtest the map for me, and all but one or two loved the map, especially on infection. I hope you download it and enjoy it!

Please leave a small review off the map if you wish, your comments will be kept in mind while I am working on future maps.