Hi,
I'm assuming that the make_gatehouse_towers configuration in the walled cities is referring to the towers that are built where the town road intersects the wall. This can not be be disabled by making make_gatehouse_towers=0. I really like these towers but they are less than majestic when used with a short wall, such as the wall in the prosperous vanilla village. Also, the "raised gate" (fences) portion gets in the way of short walls.
Thanks