No its not possible, you want the long explantion? Bottom line the debris is only effects, you would have to make solid debris and apply it to every plane as a damage effect and even then all the debris would have to assigned a damage value. So basically you can redo a lot of aircraft damage effects (that mean each plane would have to be re done), or you can get into 3d max, make a destroyed aircraft model that would show up after any plane is destroyed. (you have to figure out how to replace a model with a model in game without it hiccuping) In that, it would have to be able to fall from the sky therefore it would need a flight model. Also you have to think of the huge impact on a computer's performance. Because the model would not disappear it wold be there long after it has hit the ground.