Ka kammala wannan jumla: A shekara ta 1941 an tura shi zuwa Ofishin Yaki na Musamman, a shekara ta 1941. A ranar 28 ga Mayu 1943 ya yi parachuted zuwa tsaunukan Montenegro a matsayin wakilin GHQ na Burtaniya a Gabas ta Tsakiya zuwa babban kwamandan Yugoslav Partisans, wanda Josip Broz Tito ke jagoranta. Ofishin Deakin, mai suna "Typical", ya haɗu da Tito yayin da sojojin Jamus da Italiya suka farautar 'yan tawaye ta hanyar tuddai na yankin da ke kewaye da Dutsen Durmitor a lokacin
aikin Schwarz. Kawai a ƙasa da saman Dutsen Ozren, 'yan tawaye sun shiga tarko ta hanyar harin bam na Jamus kuma an tilasta su ɓoye a cikin bishiyoyin birch. A wani harin, wani rukuni na bama-bamai ya fadi a tsakanin su, ya kashe mai kula da rediyo na Deakin, Bill Stuart, da Tito na Alsatian kare 'Luks', kuma ya raunata duka Tito da Deakin.