Operation Drum Beat?

Just out of curiousity, has anyone come up with any missions, mods or campaigns for Operation Paukenschlag (Drum beat), the U-boat campaign in the Gulf of Mexico??

I grew up down in southeast Texas and read a few articles in the local papers reminiscing about World War II, how captured POWs worked in the rice fields, U-boats were scene in Galveston Bay, etc. I find it really fascinating.