listed as a member of http://noname.c64.org/csdb/group/?id=396 in http://noname.c64.org/csdb/release/text.php?id=638
perhaps he`s one of the other german Mad Maxes: http://noname.c64.org/csdb/scener/?id=2070 or http://noname.c64.org/csdb/scener/?id=15586 ?