And Greyhound depicts a relatively calm series of engagements, compared to what actually happened. Consider the U.S.S. Borie: https://en.wikipedia.org/wiki/USS

And Greyhound depicts a relatively calm series of engagements, compared to what actually happened. Consider the U.S.S. Borie: https://en.wikipedia.org/wiki/USS_Borie_(DD-215) https://en.wikipedia.org/wiki/USS_Borie_(DD-215) which rammed (!) a U-Boat in high seas, was repeatedly picked up by waves and dropped on top of the surfaced U-boat, whereupon a small arms engagement broke out (!) until the U-boat attempted to disengage and was damaged by the Borie's main guns. Both ships sinking, the Borie attempted to rescue the German submariners until a torpedo from another nearby submarine caused them to reconsider. The Borie then promptly sank from seams opened by being repeatedly bounced off the top of a submarine and most of the crew were rescued.