The Enemy of my Enemy
Alpha Wing has to save a pirate convoy under attack from Morgan Technologies forces. Actually, the convoy can handle itself, just a medical frigate needs saving.
You still have the same story-immune wing. Although your entire team is outfitted with Hercules Mark II fighters, you are recommended to fly a Perseus with at least one Prometheus S, Harpoons and Trebuchets.
Don't worry about the Erinyes fighters or the convoy craft, bypass them and focus on the Vigilant. Tell your team mates to defend the Vigilant, and destroy the Auriga's forward beam cannon that's far away. You only need three Trebuchets and a few shots from your main guns.
The rest of the action is to destroy a few waves of Perseus fighters, and then a wing of Dragons will show up. They will escape after a few minutes. After that, Manticores and Nahemas will show up. Initially the Nahemas will focus on the Auriga, but after it escapes, all Shivans will focus on the Vigilant. You only have to hold off the Nahemas, so they can escape and Allied Command can track their movements.
Destroy all Manticores and wait for the Vigilant to escape. After that, return to base.