ok Bustr made a gunnery map just for this purpose.
there are tons of stationary tanks there at the long gunnery area, however there will be no Icons.
hit them with Ap and they simulate the buildings exploding.
he takes them down.
Now as far as spawns, se of a1 is 12000 ft.
nw is 7000 ft, or 6k above base.
go to the clipboard , options, arena setup, fields, and change the country to anything other than bish.
hit your targets amd they will go down,
you get extra ammo and stuff so learn about the settings for the arena and how to change things around.
this will help as you can actually try multiple times without having to land a rearm.
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