I beat it by heading up and over the two science cruisers, and engaging the fighters protecting the Aeolus, and then after all the enemy fighters engaged me, I sent all the wings to hit the aeolus, and I fled. By the time the enemy myrmidons broke off of me and engaged my wings, they had already forced the cruiser's departure, completeing both the bonus and the secondary objectives, making the mission a cake-walk, if you can get back to the Custodian in time and kill bombers and fighters like no tomorrow, though. And this was on Hard. Keep in mind: All your wings (with the exception of Beta 4) should have Hercs maxed out with Hornets to do this, what 'you' fly is up to you I guess.
