Follow up to AI Pathfinding Question

Hi this a follow up question to my last and i have decided to take a more practical approach by just using the transform.LookAt property and then getting it to attack using my new attack function which moves the enemy forward and shoots every few seconds. Although i only want him to attack if he sees the player as i have added rotation damping to allow the player to escape easily i got the damping from the TornadoTwins tut so if you want the script watch their AI youtube vid. Can anyone solve my problem.