This is my first ever map! I've created this map of the course of about seven or eight days so far, and I've been pouring a whole lot of hours into it! I feel in spots it's rough because it's my first venture into mapping, however I impressed myself in other spots, whether by luck or good design choices.
I started out with the vague idea of fighting on a stage, turned that into a rough layout of a concert theater on paper, and then into a defusal map in Hammer World Editor for CS:GO. The general idea of the story is that the Terrorists are a group of extremists bent on stopping a play due to homosexual characters being involved, and are willing to do anything in their power to stop it, including blowing up the materials and the stage used for the performance. The police were tipped off one way or another though, and counter-terror units have been deployed to stop them.
The Terrorists spawn in the front parking lot of the Concert Arena, given the choice to either head towards middle, in the front door towards to the stage (Bombsite A), or into a warehouse that leads into a work yard with several important containers of materials for the play (Bombsite B). The Counter-Terrorists spawn in a storage room, and can either jump out of a store window into the boarded up middle, head out onto the stage, or go out the back door and/or the garage door into the work yard.
The current version is fit for playtesting I believe, but it will most likely change quite a bit. I kept a very open feel for the map, with large sprawling corridors and tall-roofed buildings. However, there isn't a large vertical focus, only a couple vantage points for either site. The rest of the vertically on the map simply comes from the ground being higher or lower in places. This wasn't completely intentional, but as I playtested with bots, it seemed to fit alright. As of now, I'm not sure whether it is CT sided or T sided, and chances are good I won't know for a while, if ever, since I don't have the popularity to test it enough times with equally good teams to know for sure.
Here are some shots from inside the map itself, shots of both spawns, each bomb site from several angles, and middle!