This creates sweeping arcs of ambient AA fire along with flak bursts with light flashes in the sky.
It's very easy to use, simply place a manned Tunguska AA tank on the map where you would like the AA to appear. Then in the init field of the Tunguska put:
aa1 is the name of the Tunguska, 1 is yes for flak bursts. If you dont want flak then change the 1 to 0.
You can place multiple Tunguskas for a good background AA effect.
After that you put the folder AA in your mission folder and you're good to go.
Thanks goes to Bardosy for his AA script which gave me the idea to make this.
Try the attached demo mission,