 However, unlike some other batteries engaged in the same work, its official designation was not changed from 'Searchlight' to 'Moonlight', and at the Rhine crossing (Operation Plunder) it reverted to the AA role, forming part of 100 AA Bde supporting XII Corps.Once the first Rhine bridge was completed on 25 March 1945, 474 Bty moved up to the west bank of the river to take up its positions.That night there was a series of raids by single "Luftwaffe" bombers at heights up to 8000 feet, where S/L illumination permitted the AA guns to fire predictor-controlled shoots.