With the addition of the collectible U-2 Biplane squad to Stalingrad, it is clear that is possible to add vehicles to the game that aren’t necessarily very good. There is no doubt that the devs are aware of the A-40, prototype flying tank. But I think its addition to the game would be very special.
In terms of gameplay it would simply glide from an air deployment zone. The skill of the “”""“pilot”""""" determing if the tank glided towards friendly infantry or behind enemy lines. When it lands it would be a simple t-60, with the glider part breaking and de-spawning like a plane would after impact.
This tank would be incredibly fun to use, though it would be difficult to implement. This tank would be a sitting duck upon deployment, which may draw the attention of enemy planes. As far as I am aware there is no fall damage mechanic for tanks, so this would have to be addressed. There are almost certainly problems with having the glider detach from the tank upon landing and I am unsure if those can be solved. So if the tank proves to be impossible to add, its a shame, maybe in the future we could get it as a “”""“plane”"""" for an april fools event.