ok,
1/270 or 1/286 scale ground combat
so, you have 2 boards, 1 X-Wing board and 1 ground combat board.
in the center of the X-Wing board is a 6x6 inch counter that represents the area where the ground board is. if a ship passes over or lands on the counter it can make a ground attack and in turn be attacked from the ground.
I would totally buy the hell out of something like that. it can be played as a stand alone game or tie the 2 together for epic battles.