Ok I get you point
This is similar to the "standing orders thread"
In order for this to work - when a radar contact is spotted the function to activate "man the deck gun" or "man the AA gun" or "battle stations" would have to be called
and this would require some scripting...Im sure it is possible. But will require some investigation
The easist way to do this would be to link the "radar contact spotted" to the function "battlestations"
just thinking aloud here.