When looking at the fields in the manuals, the flags are opposite of what they are in the field tour videos
here .
In the manual figure 2-1 is correct, the red flag is on the red alliance with the red secret passage, however, figures 2-2, 2-3, 2-4 and others the red and blue flags are on the opposite side of their alliance. It had some of our students confused at first until using figure 2-1 and compared that to the field tour videos.
If you look at them as being captured, then they are correct.