Destroyed city (http://www.sfmuseum.org/photos2/damage2.gif)
Lucky for you I already have this done, I just have to release it. (Ignore the multicolored bright bricks, I was playing salvage in it.)
We already have a Forest map made by Tyler66. (I think it's by Tyler, not sure.)And the map "Thin Ice" is equivalent to Ice Shelf.Search those an maybe you'll find one.