If you are unwilling to update your engine to render projectiles as actual projectiles then update the models of tanks to not render a hitbox for 5mm side plates of armor which with the current system are rendered as 1000mm thick.
If you are unwilling to update your engine to render projectiles as actual projectiles then update the models of tanks to not render a hitbox for 5mm side plates of armor which with the current system are rendered as 1000mm thick.