A few points... 1. This map is not finished, but I like playing it so much, so far, that I thought I'd upload it. 2. There's no exit. You win when you kill all the monsters, especially the Cyberdemon. 3. The general idea is a wide open cityscape, with tiers. When you look up to the higher tiers with the menacing towers frowning down on you, you should feel a little scared. At least, that's the vibe I'm gunning for.