That's nice to hear. 2 tanks is very low imo. Any plans on having the amtrac / AA be a separate spawn so they don't share the same slot? The overall tanks can be reduced if this gets added (if it's a problem)
In BFV (but also BF1 - mortar truck) we have the issue where (on Breakthrough for example) one team would spawn an AA and the other spawns a Tiger. Obviously the Tiger annihilates the other team and that's just 1 person throwing the game. There's nothing the AA can do to a Tiger. The old ways of doing the spawns (BF3 / BF4) is superior because each team gets predetermined vehicles which are put there by the developers after inspecting / testing the map. That way the balance of the map is always the same instead of it being ruined just because 1 person decided to spawn a useless vehicle on X map.