User blog comment:The Forgotten Bulgar/An alphabet of our own/@comment-4635992-20200204193748/@comment-4635992-20200206034058

You are right. I saw they increased the Gaia transports capacity in the DE version of Joan of Arc and thought this is how they did it. After testing, I realized it's much more easy:

If you set Gaia's starting age to Imperial, the transport capacity is 10 instead of 5.