Thought that myself, talk about overdressed for the occasion lol, the RAF must be awash with money to use new grow bags instead of cheaper coveralls... you could see why one was the "intelligence officer" because while the rest were scrambling around in the dirt, he was sitting at a desk in the warm playing with his "John Bull" printing set.
Excellent programme and fascinating to boot. They must of drank some milk, odd the Germans never seem to have queried why few or no metal tins in the rubbish, considering the amount they got through.