I posted an imperial Snap Shot TIE fighter list before but this time I have narrowed it down a lot and play tested some and it comes down to:

Mauler Mithel
-Snap Shot

"Scourage"
-Snap Shot

Zeta Leader
-Snap Shot

"Wampa"
-Targeting Computer

Omicron Group Pilot
-Darth Vader (To be replaced by Operations Specialist upon the release of the Bat Shuttle)

That OMG blocker really helps the PS7's be in position to cheat their snap shots while Vader can sneak in some damage on low health aces. Once it's the Operation's Specialist, it'll be handing out focus like candy because two die primaries and two die freebies are miss-tacular.

Although, if I didn't want a blocker, I could drop Wampa and the OMG pilot to bring in Rhymer with the specialist and a Tactician.