Do the upgrades that come with these expansions tourney legal and the ships are just primarily focused with epic play? Did I get this right?

Any upgrades in those sets which can be used on regular ships are legal for tournament use in standard tournaments.

I'm going to abjectly beg that if anyone dislikes that, we added it to one of the many other rampaging, hate-filled threads populating the forum rather than starting it up again here.

The X-wing pilots from the transport, all the astromechs, and torpedoes are tournament legal in 100 point games.

The crew cards for Leia, Han Solo, R2-D2, and C-3PO from the Tantive expansion are tournament legal in 100 point games.

Legality for standard tournament play depends on the "epic" icon on the card. The pilot cards for both huge ships show the "epic" icon. Those are the only cards which are not legal in standard tournament play.

No other cards from both expansions have that "epic" icon. Therefore all upgrade cards and the X-Wing pilots from both expansions are legal in standard tournament play, at least technically. A good portion of those upgrade cards cannot equip to (team, cargo, hardpoint, title, huge ship only) or are useless on (requires energy) any legal pilot card. So you cannot use them at this time. Depending on future ship releases that might change.

On the reverse side of dvor's answer, can regular modifications can be added to Huge ships? For example, Stealth Device, Hull Upgrade, Shield Upgrade, Targeting Computer and Experimental Interface.

The "Huge Ship only" cards and ship specific cards are obvious, but I'm assuming the Huge ship's movement would mean an Engine Upgrade wouldn't be allowed and Munitions Failsafe would be pointless as there are no Huge secondary weapons that require you to discard the card.

Are there specific rules that come with the Huge ships (which I don't have), because I can't find anything in the generic Huge ship rules.

Page 7 of the FAQ:

Modifications
Huge ships can equip only modifications that are labeled “Huge Ship only.”

It is, in fact, mentioned in the generic huge ship rules as well on page 4.

Soooooo... are you sayin' I can't take a Tibanna Gas Supplies on my Rookie Pilot??? Seriously? I've been playing it wrong all along it seems.

Note that in regards to modifications, the only modification that is currently available for Huge ships is the Combat Retrofit, which is GR-75 only.

Page 7 of the FAQ:

Modifications

Huge ships can equip only modifications that are labeled “Huge Ship only.”

Well isn't that wierd? I did a keyword search for "modification" in the Huge ship pdf and the FAQ and it didn't pick it up in either, but when I used the old fashioned "eyeball", there it was.

Thanks guys. I've never thought about it until now, because I don't have a Huge ship, but someone asked me yesterday and I couldn't put my finger on the answer straight away.