Today I hit a convoy that had a ship that showed up in the scope as "Replenishment". Turns out it is the Cyclops, which is a "ghost ship"
http://en.wikipedia.org/wiki/USS_Cyclops_%28AC-4%29
I saw a Youtube video that shows this ship with a skull in a window. I did not see that through the periscope.
1 mag Torpedo sank it though. Good for like 14,000 tons.
Steve