Okay, so I am just starting out, and I do not have budget to get more ships, so don't suggest buying more ships.

With that, I have 1 Core Box, and Y-wing, B-wing, and Tie Advanced expansions.

So, with that, here is my proposed List:

Ten Numb + Autoblaster + Marksmanship - 39

Luke Skywalker + R2-D2 + Squad Leader - 34

Gold Squadron + Ion Cannon + Proton Torpedo - 27

My intent would be to use Ten Numb as a beast for one-hitting TIE Fighters and Luke as an all-around generic fighter that can pass extra actions to the Y-wing when in range, helping keep it alive or giving it extra actions for the torpedo and other target locks.

I did consider giving Ten Numb Swarm Tactics and having it move with the Y-Wing, but I feel the extra firepower of Marksmanship will be overall better. Luke would be too fast for swarm tactics with a Y-Wing.

Any suggestions?

Why don't you drop auto blaster off ten numb, upgrade your y to Dutch, and change Luke to Biggs.

Biggs can soak up damage and save off hits from your other two ships. Dutch has better uses then an auto blaster.

Though if you place your ion with the b-wing and the y-wing you might be able to have better synergy. Plus you can ion a bounty huntery or two small ships in one turn, use your x-wig and b-wing to Kturn and punish the next round.