Lock mouse help?

i made it so that the mouse is locked in center of screen

game:GetService("UserInputService").MouseBehavior = Enum.MouseBehavior.LockCenter
game:GetService("UserInputService").InputChanged:connect(function(inputObject)
	if inputObject.UserInputType == Enum.UserInputType.MouseMovement then
		game:GetService("UserInputService").MouseBehavior = Enum.MouseBehavior.LockCenter
	end
end)

now how ho i make it so that it moves the camera when you move the mouse in 3d person

If you wanna do it simply just set the CameraMaxZoomDistance under StarterPlayer (Properties) to a low number. The player can't zoom out, and it moves the camera with the mouse, but it still stays center screen. That's the easy way. But there are other ways.

Trying to do fp? Its in the player.