I like the idea of the map, as ctf, its not complicated enough to be inf, on bravo side at least. Instead of going to make a new map, improve this one and re-release it because it could go somewhere once you shade it up, lighten it up (not too much, its good dark but not pitch black), change the 'lights' in the jailhouses to maybe a very light-pale yellow, better yet, put actual lights in them.
Maybe put a sewer route below the jail houses, to spice things up a bit, with maybe an entrance at each base and in the middle. Make the buildings a bit more complicated, for instance a balcony on some... haha... would you want to give me this map
? now i want to do it... give it up sasquatch!
For serious, those are just some personal suggestions, maybe spring a few ideas into your head. I would really like to play this map, make it better, a lot better... at least a 7/10 rating from your current 1/10 (for the idea).
Like niko said, dont rush your maps, give them time, don't release it when your 'satisfied', release it when you yell out 'Damn' when you see an overview of it and little johnny gives a standing ovation for it.