Help with creating campaign.

[Turbografx]

Hi,

I'm trying to create a campaign for Dagon's U class boat based out of Darwin. This is only my second time messing around with the campaign UPC files and I can't seem to get it to work. The subs aren't correctly listed in the menu and whichever one I choose, the game crashes. I created a new flotilla, flotilla 4.

Here is what I've done so far:
Campaign:

[CareerStart 1.Flotilla 4]
ID= C1Flotilla4
NameDisplayable= Darwin
IDLinkFlotilla= FremantleCommand
IDLinkUserPlayerUnits= F4Sboat, 6, F4SSU, 10
FlotillaBriefingText=
FlotillaCommonality= 2 ; to be used when a random choice is assigned

Flotilla:

[Flotilla 4]
ID= FremantleCommand
;NameDisplayable= Australian Fleet Force
NameDisplayable= Australian Fleet
AvailabilityInterval=NULL, NULL

[Flotilla 4.Base 1]
ID= Darwin
NameDisplayable= Darwin Naval Base, Darwin, Australian
ExternalBaseName= Darwin
AvailabilityInterval= NULL, NULL
DepartureDescription1= 14517308, 1746167, 267.488647
DepartureDescription2= 14517861, 1744261, 0
DepartureDescriptionOut1= 14449908, 1711216, 276.175903

[Flotilla 4.UserPlayerUnitType 1]
ID= F4Sboat
NameDisplayable= S-18 class
AvailabilityInterval= NULL, 1942-04-15
IDLinkUserPlayerUnitType= S18
UnitTypeCommonality= 6 ; to be used when a random choice is assigned
IDFlotillaLinkTransferTo= BrisbaneCommand ; when the flotilla is disbanded, the subs of this type are transferred to this one

[Flotilla 4.UserPlayerUnitType 2]
ID= F4SSU
NameDisplayable= U class
AvailabilityInterval= NULL, 1945-02-01
IDLinkUserPlayerUnitType= U class
UnitTypeCommonality= 7
IDFlotillaLinkTransferTo= NULL

The mission lines are just copied from one of the other campaigns.