There is a whole page if damages that could be added, especially in the gv realm. I suggested something similar for gv's not all that long ago.
It seems that currently, damage is an "all or none" event. What not partial damage? Does an elevator have to be completely destroyed? What about that aileron? Why not partial? Same goes for gv's. What not receive damage to the turret and make it unable to traverse? Currently, it is %100 up or %100 down.