Although there is no evidence of Fleming himself participating in the operation, 30 AU operative Jim "Sancho" Glanville did infiltrate the castle at Tambach, and with the help of a few marines secured a massive collection of highly secretive German naval intelligence.
The name of Fleming's Jamaican home, as well as the 1995 film Goldeneye, came from an operation to maintain communication with Gibraltar in the event the Nazis took Spain and to carry out sabotage missions from there. The mission took Fleming to Spain, Portugal, Tangiers and Gibraltar.
In the last scene of this episode the book on the table is "Field Guide of Birds of the West Indies", written in 1936 by the real James Bond (1900-1989), an American ornithologist. Fleming was a keen bird watcher and familiar with the book. He used Bond's name with his permission.
Though Werwolf, a Nazi attempt at fostering late and post-war guerrilla warfare, was useful as a propaganda tool, they were almost completely ineffective as a fighting force, instead claiming credit for several deaths and sabotages they had no part in.