Snap shot reads "... you cannot modify you attack dice...", where "you" means the ship that snap shot is equipped to. Then, you have an escort with M9-G8, with a target lock on a ship with snap shot. M9-G8 then rerolls one bad result, increasing your snap shot swarm damage. Either this was intentionally done, as both cards were revealed in the same pack, or its an amazing unnoticed boon. Here's my take on it:
3 x Green Squadron Pilot (21)
Juke
Snap Shot
A-wing Test Pilot
Chaardan Refit
Shara Bey (37) - Alternatively, VI and Vectored Thrusters for some Arc-dodging shenanigans.
M9-G8
Weapons Engineer
Swarm Leader
Total: 100 pts.
So, turn 1 slow play, to give Shara a target lock on two friendly A-wings. Turn 2 the A-wings rush forward and take an evade action, while Shara focuses. The opposing ships then move into range 1 of the A-wings, and they must roll naked dice against Juke and a reroll, up to 3 times. Then during the combat phase, enemy PS 7+ aces shoot (which is basically all aces except PTL Ryad), probably stripping a few evade tokens. Any tokens remaining are spent via Swarm Leader to give Shara some decent kick - up to 6 attack dice at range 1.
Overall, the synergy is immense against opposing aces. However, PS 3 or lower swarms (TIE swarm is making a comeback) have a big advantage, as the evade isn't yet in place for Juke. It's got a strong start and midgame, but a 1v1 endgame with either Shara or an A-wing isn't very favourable. Still, this is just about the strongest movement phase attack I can think of.