I dont know if it would be worth the trouble to add to the engine, more stories on a building, but i think it would be cool. like to have snipers in church towers, MG's on water towers/gaurd towers, or have 20mm's on roofs. i think itd be cool but it might not be practical, plus in addition, did it happen that often. i would like the opinion of you guys, but like i said, it might not be practical, but i think it would add to a great game.