It is my first map, and far from being finished. It's supposed to be a mine. The Humans start in a hall where an elevator platform has deposed them. There is a large path, with a 45 degrees elevator that goes to a big cavern. Here some tunnels go to the lowest cavern where the alien base is positioned.

There are 2 verticals alternatives to the elevator, a ramp with many turns and a ladder. There are also 2 corridor that goes directly from human to alien base. A medium sized one with fluid pipelines, and a small one with power wires.

The choose of cavern is probably not a good idea for a newby mapper, but with the help of some tutorials available on the web I think I will deal with it.
The map is intended to be a little bigger than ATCS, but a lot less than most tremulous stock maps.
Any comment or advice is welcome, I will probably release a sort of rought alpha version in a week or two, just for having feedback about proportions and gameplay.