I'm not sure if you can run a Saved mission in the ME... I have no idea how they keep up with the machine state at the time of the save.
Since you didn't get the "End Patrol" prompt, if you look at my screen grab, that prompt had just come up where my boat is. How close to there do you suppose you were? It might have CTD'd while attempting to display that.
But yes, I do suspect a bad spawn somewhere in the area, outside of your visual range, but within the game's 30km "de-spawn" range. I got several "glitches" in the game while close to the Manila Bay area, and was fully expecting a crash from it, but never got one, so I'm still going through the files in the 41a layer. If I can't find anything, I'll try driving around the area after March 1, 1942, which of course, can be more difficult than the middle of December 1941...
