How do I edit the Gernada Mission??

[meade95]

I own TOAW II and have the latest 1.04 or 1.05 patch. I would like to be able to use the Gernada map for a new scenario or maybe just to add to the existing Gernada scenario that comes with the game. This is the Gernada mission that comes with the game.

My my editor says I am unable to pull up the Gernada scenario. Does anyone know of a way to use the Gernada map or edit the existing scenario?

Thanks for any help.