It actually shocks me at the apparent futility of the British defences at Scapa,it was possibly the most formidable naval base in Britain with very difficult coastline to navigate,wrecks dotted around all over the place,probably riddled with mines,and contained some of the RNs best capital ships!,and here we have UBoats creeping in and out like it was a game of hide and seek! hehe
I know Prien managed it for real,and a UBoat is very small and maneuverable compared to a battleship for example,but it makes you wonder what the RN were doing!,playing poker?
