^^^ those are the files in the SH4 folder inside your "My Documents" folder, right?
Keep a thread on your application, Bill, this could be a most amazing tool. You might want to talk to mcoca since his bulk mission editor already is very powerful.
Actually you might want to talk with Jscones about JSGME, too, because the ability to do this as a MOD (on the fly) is really what you want in a way.
Seems like you need to read the save files and look at the ships that are sunk, and where/when they were sunk. You can then have the appropriate mission layers (which are organized by date) opened and modded, but not in the regular Campaign folder. Instead, change them only in a MOD campaign folder, then have JSGME add the mod on the fly.
JSGME new version thread:
http://www.subsim.com/radioroom/showthread.php?t=114844
Mcoca's Automated Campaign Editor thread:
http://www.subsim.com/radioroom/showthread.php?t=113918