[UnitPart 1.UpgradePackSlot 1]
ID= UpgForeFlak
NameDisplayable= Fore Flak Turret
Type=NULL
AcceptedTypes=
GerLightAA
UserCustomizable=Yes
IDLinkUpgradePackSlots= ForeFlak
IDLinkUpgradePackSlotsIntervalDefault1= NULL, NULL,
Upack20mmSingle
[UnitPart 1.UpgradePackSlot 2]
ID= UpgAftFlak
NameDisplayable= Aft Flak Turret
Type=NULL
AcceptedTypes=
GerLightAA
UserCustomizable=Yes
IDLinkUpgradePackSlots= AftFlak
IDLinkUpgradePackSlotsIntervalDefault1= NULL, NULL,
Upack20mmSingle
and not advxviitwin whatever ! so simple it took me over an hour to find...
done !