How to make camera follow unit?

[Suomileijona]

I looked a post that asked the same question and the script was this:

_camera = "camera" camCreate [0,0,0]
_camera cameraEffect ["internal","back"]
_camera camcommit 0
@camCommitted _camera

#camloop
_camera camsettarget NAMEoftheUNIT
_camera camsetRelpos [0,-5,2]
_camera camcommit 0
?(VARIA==1): goto "camloop"

It works but the camera doesn't move and follow the unit. It just watches the unit. It doesn't work if I want the camera to follow a car to another side of island. So how can I do that?

EDIT: I took this: ?(VARIA==1): off and now it works