Almost finished with the english edits, but some storyline mixups are beginning to show. By this time, is the Chernarus gov't still in exile? I took the libery of removing the exile text in the stringtable, since with the Russian's withdrawl I assumed the Chernarus gov't would be the assumed government, even if the CDF itself, just a wing of the administration, is crippled. Exile, to me, implies a coup d'état from within the country of the established gov't (Or did this happen and did I miss it?)
I'll have to gather all the stories together and play with a storyboard of some sort. There must be something I can try online, or maybe just 3x5 cards on the floor at home. I wouldn't think to go this step, but you have put so much time into these missions that it would be a shame for the storyline to collapse. That's what I estimate will keep some number of players interested from one mission to the next, or at least their interest to play the missions consecutively.
Edit: First run through the stringtable and briefing attached. Tried to fix the flow of the conversations, because their content is growing complex as this campaign develops.