Tavson + 3 Tie/SFs (Extended)

[Goseki1 637]

Looking for a bit of help refining a list. I want to run an Upsilon and 3 SFs but I'm not really tied to pilots and upgrades. Tavson can be a horror show and a real mistake to shoot, and the 3 SFs with concussions and Passive sensors is still a *****, but I wonder if there's a better loadout for Tavson? Phasma seems a good choice to help reduce the chances of ships k turning around Tavson and CD makes it easier for him to maneuver. Thoughts welcome! 

(32) Zeta Squadron Survivor [TIE/sf Fighter]
(6) Concussion Missiles
(2) Passive Sensors
Points: 40

(32) Zeta Squadron Survivor [TIE/sf Fighter]
(6) Concussion Missiles
(2) Passive Sensors
Points: 40

(32) Zeta Squadron Survivor [TIE/sf Fighter]
(6) Concussion Missiles
(2) Passive Sensors
Points: 40

(64) Lieutenant Tavson [Upsilon-class command shuttle]
(5) Captain Phasma
(4) Shield Upgrade
(6) Collision Detector
Points: 79

Total points: 199