So I have installed the excellent eburger66's mod for SF2:NA - that way I must have had SF2, Vietnam, Europe and North Atlantic merged into one installation - and been mastering my skills in single missions for quite some time, but recently found myself confident enough to start a campaign, at least as a Tomcat driver. The case is that the first mission was interception over Keflavik - I landed on fumes, the engine stopped working a few feet above the deck, whole squadron returned intact with at least five enemies downed, the mission was deeemed a success with 250 or 2500 points - can't remeber now - but at the same time \i ggot a message that the enemy achieved their strategic objectives, the campaign was a failure and finished at once.
I have searched here and there how to trigger the mission end in a campaign fter its successful completion, but ended up empty-handed. That was the custom '75 campaign I was trying.