Well I mean XCOM could have like Apaches or something to use as gunships. And a skyranger can be fitted to carry a 20mm cannon with enough ammo to do a few gun runs before needing to take up a holding pattern without losing too much mobility. Hell you can even have a LMG mounted to the back hatch for a crew chief to operate. and we can have specially designed Skyrangers and other things for gunships.