Don't forget the vehicle guns from Arsenal, that included lasers with an Extended Range of 20 km x infinite as long as there was line of sight, but damage dropped over a distance. If you're 1km high you'll have >100km as line of sight (hello Pythagoras! And yes, this is the main reason I ever use Pythagoras, line of sight to the horizon for ranged weaponry) to target any enemy you want.
