I just now tried that, as well as commenting out some other KindOf's, and they make no difference as far as this is concerned. My code for the SDZ is unchanged except for this module:
Code:
Behavior = OCLUpdate ModuleTag_05
MinDelay = 120000
MaxDelay = 120000
CreateAtEdge = Yes
FactionTriggered = Yes
FactionOCL = Faction:America OCL_AmericaSupplyDropZoneCrateDrop
FactionOCL = Faction:AmericaSuperWeaponGeneral OCL_AmericaSupplyDropZoneCrateDrop
FactionOCL = Faction:AmericaLaserGeneral OCL_AmericaSupplyDropZoneCrateDrop
FactionOCL = Faction:AmericaAirForceGeneral OCL_AmericaSupplyDropZoneCrateDrop
FactionOCL = Faction:China OCL_ChinaSupplyDropZoneCrateDrop
FactionOCL = Faction:ChinaTankGeneral OCL_ChinaSupplyDropZoneCrateDrop
FactionOCL = Faction:ChinaInfantryGeneral OCL_ChinaSupplyDropZoneCrateDrop
FactionOCL = Faction:ChinaNukeGeneral OCL_ChinaSupplyDropZoneCrateDrop
FactionOCL = Faction:GLA OCL_GLASupplyDropZoneCrateDrop
FactionOCL = Faction:GLAToxinGeneral OCL_GLASupplyDropZoneCrateDrop
FactionOCL = Faction:GLADemolitionGeneral OCL_GLASupplyDropZoneCrateDrop
FactionOCL = Faction:GLAStealthGeneral OCL_GLASupplyDropZoneCrateDrop
End
The OCL's are identical apart from using different transport planes.