Trucks shouldn't be able to carry AA and instead use a movecraft that has limited amour, bigger min block size, the ability to go over rough terrain and through trees and have a periscope. It should be able to carry up to two AA cannons (depending on size) or one howizer. The truck should not be able to move when aiming, firing ,and for the howizer, as the barrel cools down. Although I think this is better then using a normal truck I think it isn't that useful due to how easily it can get sunk. To fix this I suggest u implement something that applied to irl to. The craft will be invisible on map and craftlist untill a shot Is fired, after a shot is fired the craft list will show the direction and distance (or coordinates idk how craftlist works rn) of the truck when it fired that shot. This acually is what happens irl and will allow for Tactical mission such as striking the banner with a howizer or sneaking up on an incoming zeppelin. And one last suggestion, u can only fire it with the tripwire hook meaning infantry can also sneak up to the trucks and kill the pilot while he attempts to fire. This makes it less op.