[Trevally.]

With Happy Times you are in the 2nd flotilla. Here is the file:-

[Flotilla 2]
ID= 2ndFlotilla
NameDisplayable= 2ndFlotilla-Name
AvailabilityInterval=NULL, 1944-08-31

[Flotilla 2.Base 1]
ID= F2Kiel
NameDisplayable= Kiel-Base-Name
Info= Kiel-Base-Info
ExternalBaseName= Kiel
AvailabilityInterval= 1937-09-01, 1939-09-31
DepartureDescription1= 1217736.891907, 6518668.470551, 328.940399
DepartureDescriptionOut1= 1216450, 6531720, 30

[Flotilla 2.Base 2]
ID= F2Wilhelmshaven
NameDisplayable= Wilhelmshaven-Base-Name
Info= Wilhelmshaven-Base-Info
ExternalBaseName= Wilhelmshaven
AvailabilityInterval= 1939-10-01, 1940-06-31
DepartureDescription1= 979351.891095, 6425338.882576, 180.777161
DepartureDescriptionOut1= 983640, 6421670, 0

[Flotilla 2.Base 3]
ID= F2Lorient
NameDisplayable= Lorient-Base-Name
Info= Lorient-Base-Info
ExternalBaseName= Lorient
AvailabilityInterval= 1940-07-01, 1944-08-31
DepartureDescription1= -399004.497429, 5730374.314606, 169.253159
DepartureDescriptionOut1= -403840, 5726020, 225

Check what date you are in game and look at the dates above (date = to and from) to see where your base is