I really think it was Availability Dates in the
data\UPCDataGE\UPCUnitsData\UpgradePacks.UPC file.
I can not be sure because when I uninstalled SH5 for fresh install, SH5 Uninstall removed my MODS folder as well and I lost everything I was working on at the time.
Here is Example for the FuMO-29 Gema.
I changed Start Date for Interval 1 to NULL so that Upgrade Pack is available right away.
Code:
[UpgradePack 2]
ID= UpackUb7FUMO29Radar
NameDisplayable=UpackVIIFUMO29Radar-Name
Info=UpackVIIFUMO29Radar-Info
Notes=UpackVIIFUMO29Radar-Notes
FunctionalType= UpFTypeSensorRadar
UpgradePackSlotType= UboatType7Radar
ImageIndex=14
Type=NULL
UnitUpgradePackIntervalOptionCurrent= NULL, NULL, 0
UnitUpgradePackIntervalOptions1=NULL, 1942-06-01, 2000
;UnitUpgradePackIntervalOptions1=1942-02-01, 1942-06-01, 2000
UnitUpgradePackIntervalOptions2=1942-06-01, 1942-08-01, 1000
UnitUpgradePackIntervalOptions3=1942-08-01, 1942-10-01, 900
UnitUpgradePackIntervalOptions4=1942-10-01, 1943-02-01, 800
UnitUpgradePackIntervalOptions5=1943-02-01, NULL, 300
IDLinkUpgradePackElements= EqpFumo29RadarApp, NULL, EqpFuMO29
TrackingID=601
;"UnitUpgradePackIntervalOptionsx=<Start_Date>, <End_Date>, <Renown_Cost_for_Interval>"
I was changing Interval Dates to replicate Historical values.
For testing, I may have set
UnitUpgradePackIntervalOptions1 to be available right away and the end date may have been before the start date for
UnitUpgradePackIntervalOptions2.
Also, the
data\Submarine\NSS_Uboat7x\NSS_Uboat7x.SNS files have control of availability dates because the cfg# Nodes are controlled here.
If the cfg# Node date expires in this file for your U-Boat, that equipment that attaches to that cfg# Node can not be installed.
I know that TheDarkWraith has edited these files with a few of his MOD's.
I just started changing these files in revision v1.4 of this MOD.
Lastly, I noticed in OH II v1.4, the Campaign Time Line is not linear.
i.e. First Campaign ends in April and then the Next Campaign starts in March. So you are going back in time and that can removed equipment that is already installed. The Kicker here is, You DO NOT get your Renown Points back if this happens.
I hope this is the information you were looking for to answer your question?
Regards!
TheBeast