some of my strongest lists have involved double ARC-170s, and here is my latest take on it. It puts more focus(pun intended) on damage mitigation than my other builds. After the first turn Norra would be capable of generating 3 focus tokens/turn. 1 exchanged for a dodge token via Jan Ors, 1 to keep and 1 for use on R5-P9 at the end of the turn. Norra will also have a 4 dice primary with 3/4 dice re-rolling via Rage. All this enables Shara to use her own target lock and focus. Meaning both ARCs will have full dice mods and full regen capabilities each turn. The shield upgrade and EMP device are potential place-holders.
Shara can also be switched out for Miranda with a TLT setup.
Here is the list:
R2-D2 / Push the Limit / Jan Ors / Alliance Overhaul
R5-P9 / Rage / Kyle Katarn / Alliance Overhaul / Shield Upgrade
Veteran Instincts / Sabine's Masterpiece / Captured TIE / EMP Device / Inspiring Recruit
let me know what you think!