After the Commando headquarters group had landed, Commander Ryder went to check for himself that "Campbeltown" was firmly stuck in the dock. Some of her surviving crewmen were being taken on board the MGB. Ryder returned to the boat and ordered the MTB to carry out its alternative task and torpedo the lock gates at the old entrance to the basin. After a successful torpedo attack, Ryder ordered the MTB to leave. On their way out of the estuary they stopped to collect survivors from a sinking ML and were hit and set on fire. Back at the docks the MGB had positioned itself in mid-river to engage enemy gun emplacements. The forward 2 pounder was manned by Able Seaman William Alfred Savage. Commander Ryder reported that "The rate of supporting fire had evidently been felt, and the commandos in the area of the Tirpitz dock had undoubtedly overcome the resistance in that area. There was an appreciable slackening in the enemy's fire."