The escape bit actually is fairly straightforward most of the time. From a single formation, no matter how big, it's pretty much always just pull up and out on your side of the formation. If you're rolling, keep going in the direction of the roll. If you're if in line astern, despite how close it looks, you nearly always have nose/tail separation or can do very quickly and just pull straight up.
If it's the leader, there's going to a bit more drama, but actually nobody else should do anything dramatic - just open out in sections, left side, right side and stem.
It's a bit more tricky in some of the dynamic manoeuvring, where occasionally the escape is counterintuitive either because of your own aircraft attitude, or because of what else is going on around you. You just try and drill those ones in.
And ultimately of course, there's still a big place for common sense and good airmanship...