Please help me with an advice.I got stuck towards the end of

My name is Dan i am new on this forum and i am playing the WC darkest dawn I played almost to the end BUT I AM GETTING STUCK where we do not get in time to save that carrier and the survivor Battleaxe ship after a few encounters with the KILRATHY gets hit by a cloaked missle called SKIPPER LAUNCHED FROM A CORVETTE SHIP.Itried many times to shut down that missle but every time i try is impossible to find it in time.Please can you tell me what to do to finish that missile and stage? O will much appreciate your advice.WC is the best game i ever played ant in the game i got many decorations but i got stuck at that stage and i cannot continue.I feel so bad.....Thanks.Dan