[DRG]

That can work with luck and a large building like that.....note that under the central dome it's 0........that's the code clearing down the terrain at the central point but in cases like this it doesn't drop off like a cliff and you can get the effect you noted but as noted......there is an element of luck involved.......poke around with the map editor and you'll see it's tricky and unpredictable and sometimes you think you have it nailed.......then you save the map and the code gives you a little surprise when you open it again later and everything you thought you'd done has been undone