A total conversion mod that replaces all factions with original story ones. This is a sci-fi apocalyptic tale of how mankind is close to extinction and pay attention to the advice of a species similar to them who've been watching them for millenniums and are really not ready to see them die.
General Lohind had no need for helicopters, so he installed an Anti-Armor, Anti-Air Turret on the Helipad instead! Also, there are more armored than other fields.
(VTOLs still spawn on the helipad though. I see how I can do something creative with it.)
Thats big gun >:-)