I've done it 3 times in a row, and played the campaign. With a minimum ghost crew I managed to play and sink some American destroyers.
I miss the UZO, there is no compass


, I just use the binoculars, but you have no idea about the bearing. All the enemy ships engage me from much further than my gunners do, It;s fun anyway


, I rammed some destroyers like they were some dinghies.