Talking in code over the radio to HQ?
The Eagle's Nest castle is a German intelligence centre, so why are British secret agents using words over the radio back to England (even in German) like 'castle' and mentioning slain agents?
Even in occupied France and Belgium, SOE and OSS agents never dared stay on the radio for long due to the Abwehr locating their location with sophisticated equipment (and the Gestapo did catch and torture/execute agents) let alone blurting out geographical words and stating agents were dead?
Wouldn't it be safe practice to use coded references for the castle, operatives, times and rendez-vous etc?