I think the very Idea of bringing Agile Solution into Padstow is brain dead.
AI has never been “fixedâ€, if by that you mean it is aware of player ships and obeys COLREGS.
It is up to you to stay out of their way. Some missions are designed in such a way as to make that very difficult. My only suggestion for coping with those is to take time to observe —from a safe distance—the behavior of the AI, and plan a strategy to avoid getting hit. Otherwise, find another mission.
Marty