Drop the Stealth Team and all the Sheild Drones... + 12 Fire Warriors are only 108, do your maths again buddy
Split up your Fire Warriors into 3 units of 8. Split the Pathfinders into two units of 5. This allows you to marker two different targets.
What are you using the Hammerhead for, if its for
AT you have much better options, try a few Deep striking Melta Crisis Suits instead of your stealths. If you Drop the Hammerhead you will have two options...
a) Add another Riptide w/Points saved from Stealths and Hammerhead slap on VT to both Riptides for Anti-flyer.
b) Grab some
HYMP Broadsides with either
EWO or V, your choice.
ADL is good but at 1000 points there will most likley be enough cover that you don't need it. Use these points to buy yourself a unit of outflanking kroot w/a hound for far off objective grabbing.
That should give you a much more competitive and well rounded list + add Fusion to your Riptide ALWAYS... and extra Melta on a reliable platform never goes amiss.