This unsatisfactory workaround seems to work. I edit the safe game files and then use the "Active campaign selector for Silent Hunter 5" Mod to move onto the next major campaign step if I'm blocked. It keeps your history unlike silentotto
http://www.subsim.com/radioroom/down...o=file&id=1817
It is a bit of a pain but it works until a real fix appears. I may continue to use the mod even after a fix. It may release me a bit from the tyranny of only set missions in the campaigns of SH5 & OH.