Rubuta ci gaba ga wannan sakin layi - Shi ne dan Augustyn Träger, wanda kuma ya kasance mai aiki a leken asiri a kan Jamus. Babban nasarar Roman shine tattara rahotanni game da masana'antar Jamus da kuma gwajin makamai masu linzami na V-1 da V-2 a tsibirin Usedom. Bayan an ba da waɗannan rahotannin ga Polish Armia Krajowa (Sojojin Gida), wanda a biyun ya ba da su ga leken asirin Biritaniya a London, Allies sun kai harin Peenemünde a cikin Operation Hydra
a 1943, kashe biyu V-2 roka masana kimiyya da kuma jinkirta V-2 gwajin harbe-harbe da bakwai makonni.