Similar to the two above:
Right south of Sydney early in the war I find a sound contact... plot a course on the map and steaming to intercept. Weather is dreadful, so I can only faaaaiiiiiiintly see the contures of the bastard in the fog. Becomes more and more apparent, so I finally lob a fish at'im.
External camera forward, and see the flag. I go something like:
"BE DUD BE DUD BE DUD BE DUD BE DU, thank you GOD!"