Kentucky Tango
Created By Cosmic Rick
Despite the nonsense name, this map demands to be taken seriously. It has beautiful unique features and balanced gameplay. Make use of the suspension bridge, attacker's sniper mound, mid-map tunnel, and the little niches around the defensive base to get your objectives accomplished.
You'll find yourself wanting to play this map many times, both to try out all the different strategies and because it is just plain fun. The map is best for asymmetrical gametypes such as One Flag and Assault, but it also works great for Team Slayer and even the oft loathed Shotty Snipers. When you come across a map this beautiful, balanced, and versatile, you keep it on your hard drive forever.