As has already been said, you don't want to give your Shas'o too much gear. In fact, taking a Shas'o at all isn't really a good idea

too pricey, better off with a Shas'
el with Targetting Array.
Dropping all of the shield drones would be a good idea... personally I wouldn't replace them with gun drones, I'd just try to mech up those Fire Warriors. Squads of 6 with Devilfish = scoring Devilfish and protected Fire Warriors. Which is important, 'cause they die easy
Kroot are also good, as a shield for your important units (better to lose kroot than something actually valuable...) and are quite nice on any board with a decent bit of woodland. And they can outflank and grab objectives, whats not to like?
And as said, fast attack gun drone squad = bad. Much too expensive for the amount they don't do
Multi-trackers on hammerheads is also seen as pretty much essential equipment...