Solitaire: Its definately 3.6.7.
I crashed using 3.6.7. on that mision, as well as the fifth mission of chapter two. I dont know WHY it does that, but it just does.
High max: as long as the Julius departs alive, the mission will go through, regardless of what else happens. You are forced-jump out ONLY if the Julius dies, but thats about it.
The mission objectives are to protect the Julius and the other is to destroy bombers. To advance onto the next mission, you only need to protect the Julius.
I dont know WHY it isn't working. I just ran through the entire thing perfectly fine. It can't be the BoE syndrome either, sicne Mission 5 has double the number of fighters and it ran perfectly fine. It definately ISN'T the mission though, since it was the most heavily tested one (mostly due to dialogue changes) of the entire lot.
Ill PM Karajoma regarding this, perhaps he will have a better idea. Do both of you mind posting your PC stats here, so that I may go ahead and mantis the bug or at least report it?