It's a small two-sided map not meant for the main arenas...use it or not. Why complain about it? What don't you like about it? Anything you do like about it? What kind of map would not suck for you? Maybe you want a terrain that looks like a broken eggshell, with deep narrow canyons? You want bases closer together (or farther apart)? More bases? Less bases? Two sides? Three sides? Water?
If you are willing to describe what things you'd like to see, maybe someone (or you yourself) can create a decent terrain.