Kammala wannan jumla: Bayan an kammala horo na farko, an yi gwaji a Romney Marsh, Ingila. Bayan isowar tawagar a Gibraltar, an ba wa mutanen aikin da za su yi don su ɓoye kasancewar su. An rufe Cooper sau biyu: likita a tashar jiragen ruwa ta Gibraltar da kuma takardar wasiƙun soja. Duk da haka, jami'in da ke Gibraltar wanda ya sanya mutane zuwa jiragen ruwa ba shi da masaniya game da Operation Tracer kuma an kusan aika Cooper zuwa teku. Horarwa ga ƙungiyar Tracer ta faru a kai a kai. Cooper ya zauna a Rock Hotel; zai shiga ta hanyar shiga ta gaba a cikin kayan aiki na likitan likitancin Royal Naval Volunteer Reserve, kuma ya fita ta baya a cikin tufafin wani jami'in soja na Birtaniya. Daga can, ya shiga cikin rami don horo. Daga baya, ya ƙaura zuwa wani gida, tare da shugaban 'yan sanda a matsayin abokin ɗakinsa. A lokacin hutun su, an ba wa tawagar izinin shiga Spain, kuma Cooper ya tuna ganawa da ɗan wasa da ɗan wasan kwaikwayo Buster Crabbe yayin zamansa a Gibraltar. Koyaya, ba a taɓa kunna Operation Tracer ba kuma, a watan Agusta na 1943, da zarar ruwan yakin ya yi
ya juya, umarni ya fita don a rufe kogon.