Map to the Siegfried Line Sites Around Lambsborn
Lambsborn isn't Chicago so it doesn't really matter what sequence you use!  Both the Heidehof Bunker and Heideblick Dragons Teeth require a little bushwhacking but the other sites are right on the street.

Bruchmuhlbach is just above the top of the map, and L464 heads down the hill into town.  Landstuhl is a few miles to the right of this map.