Tony Vargas
Legend
(This is on the aerial troops held to the same standard of realism A hot air balloon? Made of cloth? Almost anything sharp and/or on fire. And it's a big target, with plenty of time to shoot at it as it slowly drifts towards you.Shoot them down with what?
(This is on the alternative, where the castle side gets to largely ignore the laws of physics, too Flying threats have no cover, while the defenders of the wall do, until said threats are right overhead, so it really puts thing back closer to the castle status quo, the castle commands an area (LOS, now), and the attackers, even if flying have to weather that before they can respond as effectively in kind.And the "super AAA" does not need to destroy a wall, just to kill anyone standing on it. When it is accurate enough to combat high flying threats then it is also accurate enough to do that.
Either way works. The problem is fantasy assumptions on only one side.