May have been posted but thought I would post it just in case 
Wulfmann
Jürgen Oesten (1913–2010) commanded
U-61 on nine patrols, and sank five ships, before commanding
U-106 on three patrols, and sinking another ten ships.
In October 1941 he became commander of the
9th U-boat Flotilla based in
Brest, France.
In March 1942 Oesten joined the staff of
FdU Nordmeer directing the U-boat war in Arctic waters, but returned to U-boat duty in September 1943, sailing
U-861 to
Penang to join the
Monsun Gruppe, and sinking another four ships, bringing his total to 19 ships sunk, totalling 101,744 GRT.
U-861 left
Soerabaya,
Dutch East Indies, in January 1945 and reached
Trondheim, Norway, in April, just before the
German surrender.
[30]
Oesten was the technical advisor for the 2005 submarine simulator Silent Hunter III.[31]