IIRC The Luftwaffes most successful night for Intruder ops was March 3/4 1945,Operation Gisela. Some 20 odd heavies were shot down over the Uk. The Luftwaffe lost a similar amount. German intruder ops had been a feature of the campaign throughout the war in varying degrees. By the wars end with Aerial superiority lost, they made one last effort. Hitler decreed that only bombers brought down over Germany were of value to the war effort, for propaganda purposes etc. Another one of his many mistakes.