If you were to change the air wing to Black Heart over Flayed skull then you would gain access to agents of vect stratagem, also given that the fliers seem geared for tank hunting the ignore cover shouldn't be missed, and feel no pain should help keep them going.
Also more of a personal note, I prefer the soul thirst warlord trait for combat archons, you lose the +1 strength, but gain the ability to heal by killing in the fight phase