Just finished Kerman campaign with most of the missions at 100% complete. Only managed to complete two missions at 100% first try, and got several more at 75% to 90% complete first try, so would say that you set the difficulty very well (for me at least). Voice acting, and [briefing/kneepad/SPINS/Scoring/manual] materials were really good. The background and story was really engaging. A very wide range of harrier-ing was covered making this a good campaign to learn more about the jet.
I recommend this campaign to anyone considering giving it a go.
