does anyone have any information about Frontaufklärungskommando (FAK)? (history, structure, order, missions...).
If you are limited to English, see:
Kahn, David. Hitler’s Spies: German Military Intelligence in World War II.
New York: Macmillan Publishing Co., Inc., 1978. ISBN: 0-02-560610-7. Hb. Dj. 671p. Illus. Footnotes. Bibliography. Index.
The term Abwehrkommando
was changed to Frontaufklärungskommando
and the term Abwehrtrupp
was changed to Frontaufklärungstrupp
in spring 1944. So you will find out a lot more about this organization and these units if you search using the term "Abwehr". There are quite a few books in both English and German on the subject.