Can someone please help me with the specifics on how to build forts in BoA/WiA? I can't seem to find it in the manual or on this forum. I seem to recall seeing somewhere that you need a combination of supply units and artillery for the special "Build Fort" special order to become available. Specifically, I'm trying to rebuild a "new" Ft. Dusquesne. I captured it but before the French left, they burned it. There is still a depot there. Does that matter somehow?