Here is my take on X-Wing / Y-Wing Veterans Pack. Pilots from Rogue One, A New Hope and Return of the Jedi.
Pilot cards:
General Antoc Merrick was clear choice to have as a pilot. I gave him pilot ability that reflects his role as a leader.
Zal Dinnes was member of Red Squadron in Battle of Scarif. She had over 40 confirmed kills and thus her pilot ability.
Blue Squadron pilot takes the generic pilot with EPT for X-Wings. This I'm not sure if they are "good" enough to be PS5 with EPT. My gut says they are more like PS3 pilots.
Ekelarc Yong was member of Gray Squadron during Battle of Endor. With his droid R5-P9 being already in the game I decided to give him pilot ability that has synergy with his droid.
Davish "Pops" Krail was hard choice pilot ability wise, but I decided to go for Torpedo buffing route. Somehow Pops is able to do more damage with torpedoes than anyone else.
Having been workhorses of the Alliance Gold Squadron pilots have gained a lot of experience, thus being PS5 with EPT. Could've gone for Gray Squadron pilots too, but Rogue One..
Upgrade cards:
Squadron Tactics is aimed to boost generic pilots with single named pilot. You could take 3 rookies with Wedge and Squadron Tactics for example.
T65C-A2 title for X-Wings. I decided to give point reduction for all non-Rookie pilots. I added it to avoid 5 Rookie focus/evade list.
BTL-S3 title for Y-Wings to give them more options in squad building.
R2-Q2 (Biggs' droid) to give some synergy with Biggs and his droid.
R4 Astromech to give some low cost survivability enhancing ability. R3 Astromech being mostly wasted droid slot I went for a 50/50 chance of getting an evade token.
Chirrut Imwe and K-2SO weren't in U-Wing expansion so I decided to give a shot at them. Chirrut's ability I'm fine with, but I'm not sure if it should be 4 or 3 cost. Probably 4. K-2SO I'm not sure about.