I would think one of the most remarkable feats of airmanship of WW2 was the glider assult and subsequent landing and take off by pilot Walter Gerlach, in a Fiesler Storch some 6500ft up on the rock strewn summit of the Gran Sasso to 'rescue' El Duce in 1943.
And of the Amiens prison raid by New Zealand's 487 Sqn and Australia's 484 Sqn.
Quote from Wing Commander I.S. Smith, leader of the first attacking vic of Mossie's:
We flew as low and as slowly as possible, aiming to drop our bombs right at the foot of the wall. I dropped my bombs from a height of 10 feet, pulling hard on the stick..... 