Huh! I didn't think that would happen, but of course it makes perfect sense. The best way to do it just seems to be to add redundant SEXPs at the start of each campaign.
Hey that's just reminded me. Probably not the right thread for this, but - in 'Her Finest Hour' if you get the debrief stating you've suffered high casualties (30 spaceframes I think it says) it says in the recommendations block underneath that those losses will have an affect later on in the campaign. Since the next two missions afterwards don't really apply, I'm assuming that means you'll start feeling the effect of those losses in the next Act right? I'm sure that campaign-persistent sexps don't work between campaigns though. Did you guys find a way to fix this or did one of the new builds fix it?