After you highlight your area you should be able to see a semi transparent clone of that highlight hovering over your mouse.

You should also be able to rotate it.

If anyone thinks this "mehrdad" isn't the one who did the actual pirating they need to think twice. What better way to promote your own piracy than to go to the legitimate forums for the game and post about it like you are blowing the whistle on someone else? Can't fool me, mehrdad. I got...

Agreed. is it possible for the team to release a map editor because that would unleash a WHOLE NEW GAMEPLAY for defcon.