I'd like to join my comrades above and advertise the TIE Interceptor + Imperial Aces pack first.
The INT has IMHO the best Imperial pilot ever, Baron Soontir Fel (with the Countess following close second), IA pack will give him two Push the Limit cards which are always great, the Firespray will give 2 copies of Stealth Device, which work great on INTs. With two TIE FOs, three TIE INTs and the Firespray, he can make various list combinations too, for fun.
I believe fun is the most important factor for a rookiee, and INTs in general (the Baron especially) is a heck of a fun to fly.
If he wants to stay First Order thematic, one pack of TIE/Fo plus a TIE/Sf aren't a bad combo either.
I think this is some good advice, as the cards match up nicely. At his stage in the game, you guys can probably share (or proxy depending on your thoughts on it) the cards he might need that come in other expansions (like autothrusters). The addition of a Tie-FO expansion would give him 3 ties, which are always great support to a large ship as blockers or can be run as a mini-swarm. It would also give him the full compliment of FO pilots, and Omega Leader. So my vote, in order, is:
Slave 1
Imp Aces
Tie-Int
Tie-FO
That's a nice handful of squads you can run. Option number 2 would be to just buy all of the ships. Which is the advice everyone really wants to give. = )
Agreed, that's where I was think aswell. I always love to get a full set of pilots, because you never know when you maybe need to swing or switch 2-4 points for swarms or support.