A 2v2 or 1v1x2 map depending on how bold you want to be.
This was an experiment in giving players large areas to build with, a central choke point, and pre-existing fortifications. A new version might pop up later if I can ever figure out how to make pre-placed defensive turrets actually correspond to each player spawn, rather than player 1's turrets being at player 3's base.
Anyways, enjoy! I haven't made a map since I was a kid messing around in the red alert map editor on an E-machine running windows millenium edition. Damn I feel old.