Jason Cook flies a Raven which is impossible to disable or destroy. If you capure Iuso, six ravens, and thirty mantas you can bombard him with enough fire that he turns purple so far that he can't fire back. If you then go under cloak and have your escorts attack him at close range, you can perform a glitch where he is immobalized. Beyond that you can shoot him with anything you have but he will never become disabled. Any military ships of any faction in the system will come to Jason Cook's aid when you fight him. His Raven is faster than a normal Raven and comes with a fleet of Polaris Mantas AND Vell-os Darts. He has a cloaking device which takes him off your radar. It is very entertaining to attempt to defeat him even once you know it's not possible.