(this has already been mentioned)
so with the addition of mortars i was thinking a mortar/turret looking thing that needed to be manned it would have a area that it could shoot in if the shell came in the area and a person was manning the aa gun the gun would have a chance of shooting the shell it would be like a spray fire gun and if 1 hit the shell the area beneath the shell would be exploded and the bullets that the aa gun missed would hit the ground and if some1 was hit it would do 25-50 damage
thoughts?
You want the CRAM from the shield mod. The author is also working on counter batteries for just this purpose, but that will probably take a while.