Among the many tactical innovations introduced by the Centre, codified in the "Manual on Combined Operations" and the "Standard Naval Bombardment Code", was the use of Floating Piers (pontoons) to bridge the water gap, the creation of Smoke Generating devices to obscure the assault and the use of infra-red directional beacons for landing accuracy. The Centre also played a role in the development of the first specialized landing crafts, including the Assault Landing Craft, the Mechanized Landing Craft (LCM(1)), the Landing Craft Tank (Mk. 1), Support Landing Craft LCS(1), LCS(2) and Landing Ship Infantry.