Crash on train of unit

[fudge 0]

Hi

I have been rather ambituos in my attempts to make a gap generator for zero hour. I have added a new upgrade to the internet center Satallite Hack 3. this upgrade is entened to cause the internet center to start produceing shroud arround itself. It is also supposed to add the ability to switch on a smaller generator on listening outposts. I have done this to accive this on the standard china one:

  Behavior = CommandSetUpgrade ModuleTag_96

    CommandSet = ChinaListeningOutpostComandSet_SO

    TriggeredBy = Upgrade_ChinaSatelliteHack3

  End

  Behavior = CommandSetUpgrade ModuleTag_97

    CommandSet = ChinaListeningOutpostComandSet_SO

    TriggeredBy = ShroudOff

    RemovesUpgrades = ShroudOn

  End

  Behavior = CommandSetUpgrade ModuleTag_98

    CommandSet = ChinaListeningOutpostComandSet_SON

    TriggeredBy = ShroudOn

    RemovesUpgrades = ShroudOff

  End

The First one is what I want to happen when the upgrade is purchaced.

The second and third ones are switches that turn it on and off. the only problem is that the game crashes the moment the war factory doors open to make one. Anyone got any idea whats going on