CFS3 Mission SDK

I have just started writing missions for CFS3 using the SDK. I have created a mission in which the player has to attack a large German Naval battle group with three cruisers and six destroyers.
The Ships are in the right place but for some reason they do not attack the flight with their AA guns. Does anyone have any ideas about how to make them defend themselves?
Will
The Ships are in the right place but for some reason they do not attack the flight with their AA guns. Does anyone have any ideas about how to make them defend themselves?
Will
