You might be interested in this website (
http://www.chrishulland.me.uk/styled-3/index.html) and other similar ones relating to the 1st Regiment Maritime Royal Artillery who manned the guns on the DEMS vessels. The photograph on the opening page of that link shows the barracks in my village of Lochwinnoch, near Paisley, which was their headquarters during the war. Quite a few local families are descended from men who married local girls and stayed on after hostilities had ceased, and the local parish church has a memorial plaque to those who were lost.
By searching for that regiment (and no doubt the others) you will find many links to wartime reminiscences etc and possibly more about your father's escapades.