it should have a range finder on it! you should be able to press a button and a drone that gets send up right above your tank (possibly revealing your position.) you can look down on the enemy from above and the turret should automatically follow as you move your mouse. then you can fire and there will be the yellow bar on the left side of the screen that shows your power, and your health on the right (similar to the shaft.) it would be way easier to fire accurately and way more people would use it.