Gunline Orks 1500

[Ferrett]

HQ:
2X SAG Mek 95pts each

Elites:
Lootas X8 120ts

Troops:
2X (Shoota BoyzX24 + Nob with PK and Big Shoota and Rokkit) 200 each

Fast Attack:
Deffcoptas X3 with TL Rokkits 135pts

Heavy Support:
Big Gunz, zzap guns X3 Gretchin Crew X6, Runtherd 118pts
Battlewagon, zzap gun, Rokkits X4 145pts
Flashgitz X7 inc PAinboy and Badrukk, more dakka and shootier with cybork bodies. 395pts.

What would you change in future itterations and why? Note that such changes can have maximum 10 lootas.