Yes. But why is this in the Joining the RN " thread? If you want to wax nostalgic there is the History section. If it is a Current Affair there is a section for it there. If you just want to have a rant head to Diamond Lils and select the " Things that p*** me off " thread.
I always understood that the dog was killed on the road outside the base the day before the raid and, in tribute, his name was used in the raid as a codeword to indicate that the Moehne Dam had been breached.