i know that we are not allowed to control infantry vehicles, but hear me out.
basically, its a vtol aircraft that is designed to fly from one place to another like a dropship, while also acting as a air defence/anti tank platform when landed. it can deploy vehicles into combat like a tarantula while attacking enemy vehicles at the same time. not just like covering the vehicles, being a land vehicle itself. and when it's job is done, it flies back to base to resupply
if the need for transport in not needed, you could just help support other key locations using anti-air or anti-tank weapons. i know this is op, so to counterreact this, it would be hard for small arms fire/AGMs to kill, but AAMs could take it down in an instant.
idea based on A-GEARs from Ace Online. looked up the Antonov A-40 so i thought it might be a biiiiit realistic (example pictures below.)