Thanks, I did some searching and found those threads.
I did the Mama OSI priority fix, and it appeared to work. My mission did not end exactly on June 1, 1940, but like a day later the game abruptly ended, and showed all my objectives as "finished".
Then I was shown my awards, and then a splash screen saying the war continues.
Then I was presented with campaign selection, and I selected Happy Times, and then the game started in the bunker, with a fade in from black and then CTD.
I seem to get a CTD when selecting the Happy Times campaign as a new campaign using silentotto also.
These are the mods I am running:
I did go into the generic patcher and disabled the mod that makes you have to manually start charging the batteries.
Steve