I can see why you'd have trouble with Wave Serpents (nothing in your list that is likely to deal with them easily, unless the Stealths can get around behind). Two questions, though:
1) Has the Sunshark been paying off? It seems to me to be too fragile for its points, Interceptor Drones or not.
2) Early Warning Override for a Riptide is almost standard equipment. It ought to suitably terrify any deepstriking hawks, for instance.
If the Sunshark isn't a star performer and you aren't married to its inclusion, I'd put forth Deathrain suits as a suitable alternative. TL or Dual Missile pods (with any number of third options, or none at all) will put a major hurt on Wave Serpents and other medium-light armor, and can do suitable duty as anti air if you can get a markerlight hit on the flyer in question.