I am living near Freiburg, but will not gain acces to the files. You have to e-mail them with the questions you have and they will send it to you.
militaerarchiv at barch.bund.de
The military archive is for officers data only if you want some general data you have to ask at the so called Wast.
http://dd-wast.javabase.de/
greets
Christopher