I can tell you what works for me, although you need really fast mods or really slow Revans. You also need the usual zetas but especially CLS lead. Ideally CLS is guarded. I use Thrawn and C3PO as my other two spots.
Han shoots Jolee, Chewie assists, Han shoots again. Because Jolee has high tenacity, he resists three times. CLS lead grants 15% TM to everyone but Thrawn.
CLS is fastest so he goes next. Buff immunity on GK. A resist doesn't stop the immunity but does provide another 5% TM.
Next is a toss up if your rebels get to 100% TM at the same time. I usually stun GK if Chewie is next or just do a basic with C3PO if he's next. When it's Han's turn, use his special attack on Revan. Chewie assists and applies tenacity down.
Now it's Han's turn again, he attacks twice, each has an 85% chance of TMR on Revan. Usually one of these will land.
GMY usually goes next, no big deal.
Finally it's Thrawn's turn. Fracture Revan. No mark. Kill him once to spoil savior. From there it's either kill GMY and then again after Jolee revives him (recommended) or kill Jolee first.
Mods:
https://swgoh.gg/p/279847465/
FWIW I can beat the fastest Revan on my shard in this manner (325 speed, although he loses 5 speed for using Hoda instead of Bastilla).
Good luck!
