Gunner: Ask for range, click scope. To change shells, ask the Loader. To fire the gun, press "FIRE" and click the green part of the enemy tank. Change elevation, put mouse curser on the respective cranks and ether "w" or "up arrow", and "s" or "down arrow". Rotation is the same but "a", "d" and/or "left arrow", "right arrow". Loader: When the gunner asks for a certain shell, click the ammo box on the right. The box will take 1 credit and throw out a random shell, click it to load it. When you load the correct shell, it will give you one "Target destroyed" point which you can convert to credits and vice versa through the keys of "1" and "2".