Rubuta ci gaba ga wannan sakin layi - A ranar 18 ga Yuni, 1941, II. "Gruppe" ya ƙaura daga Beaumont-le-Roger zuwa Abbeville-Drucat inda ya zauna na watanni shida masu zuwa. Daga wannan lokacin, "Gruppe" ya kare kan RAF Fighter Command "ba tare da tsayawa ba" a kan Faransa. A watan Yulin 1941, yayin da yake tashi tare da "Stab" (hedikwatar hukuma) na JG 2, Rudorffer ya yi nasarar cin nasara shida. Wannan adadi ya hada da Spitfires biyu a ranar 7 ga Yuli, Spitfire da Hurricane a ranar 9 ga Yuli, Spitfire daya a ranar 10 da 11 ga Yuli. Daga nan sai ya yi aiki tare da 6. "Staffel" na JG 2 kuma ya yi ikirarin karin nasara goma sha biyar na iska a karshen 1941, ya kawo jimlarsa zuwa 41. An nada Rudorffer "Staffelkapitän" (shugaban rundunar soji) na 6. "Staffel" na JG 2 a ranar 1 ga Nuwamba 1941, don haka ya gaji "Oberleutnant" Frank Liesendahl wanda aka canja shi. A watan Maris na shekarar 1942, II. "Gruppe" ya fara canzawa zuwa Focke-Wulf Fw 190 A-2. An yi horar da sauyawa a cikin tsarin zagaye, "Staffel" ta "Staffel", a Le Bourget Airfield kusa da Paris. An kammala gyare-gyaren a karshen watan Afrilu. Daga wannan lokacin, "Gruppe" an sanye shi da Fw 190 A-2 da A-3. A cikin 1942, Rudorffer ya shiga cikin Operation Cerberus (Channel Dash) kuma ya tashi sama da saukar Allied a Dieppe
a watan Agustan shekara ta 1942.