I am working on a player's inventory system, and handling ammo quantity changes is impossible, unlike any ItemBase entity. I can't implement it because methods that affect ammo quantity are proto native and can not be overridden. Any polling-based solution causes huge (less or more) performance issues.
Native Dayz inventory also has a polling algorithm and the controller refreshes item quantity each OnUpdate call. I wish I could have a more elegant way to implement this logic. Thanks!)