 Upon her return to service, she was assigned to the Mid-Ocean Escort Force (MOEF) escort group C-1.During that time "Rimouski" participated in RCN operations as part of Operation Pointe Maisonnette, the Canadian military's counter-offensive to the German military's Operation Kiebitz.Operation Kiebitz was a plan by the "Kriegsmarine" to have several senior naval officers (including Otto Kretschmer and Wolfgang Heyda) attempt to escape from the Camp 30 prisoner of war camp at Bowmanville, Ontario to rendezvous for a planned extraction by off Pointe de Maisonnette, New Brunswick on 26–27 September 1943.