[keltos01]

They follow the campaign dates :

All three subs :

[Flotilla 1]
ID= Penang
NameDisplayable= Penang-Flotilla-Name
AvailabilityInterval=1943-05-01, 1945-05-31


Only Jyunsen B (yet) :

[Flotilla 2]
ID= Singapore
NameDisplayable= Singapore-Flotilla-Name
AvailabilityInterval=1943-05-01, 1945-05-31

[Flotilla 3]
ID= Jakarta
NameDisplayable= Batavia-Flotilla-Name
AvailabilityInterval=1943-05-01, 1945-05-31

SUB Roster :

[UnitClass]
ClassName=SSJyunsen_B
UnitType=200
AppearanceDate=19400601
DisappearanceDate=19451231

[UnitClass]
ClassName=SSKaichu
UnitType=200
AppearanceDate=19350718
DisappearanceDate=19451231

[UnitClass]
ClassName=SSKaidai4
UnitType=200
AppearanceDate=19290315
DisappearanceDate=19451231