I know that when you activate squadrons with a command, you can move and shoot in any order.

But if you activate several squadrons together, can you move them all before you shoot the first or is it move and shoot the first squadron before you can move or shoot the second?

This would make a difference when (for example) TIEs with the Swarm effect all move to engage at once. Can the first to move and engage wait until another has also moved to engage the same target before either shoot, so that they all gain the Swarm benefit. Or would the first have to shoot as the only one engaged (without the Swarm benefit) before the second could be moved to also engage?

No, you must pick and fully resolve (move and/or shoot), each individual fighter turn. This was either covered in the rrg or faq, can't remember where I read it, but it specifically addressed it.

No, you must pick and fully resolve (move and/or shoot), each individual fighter turn. This was either covered in the rrg or faq, can't remember where I read it, but it specifically addressed it.

I can't find it in the FAQ.

The only thing I can find in the RRG is page 3, Commands section, under the Squadrons - Dials bullet, the last sentence says "The squadrons are chosen and activated one at a time." I presume this is what you are thinking of.

Also under "squadron phase" it points out that the player does not choose the next squadron to activate until the previous squadron has completed its activation.

Whilst you are asking about a squadron command, the rules for squadrons are the same, the command only allows x number to activate early - ahead of the squadron phase, and move and shoot, the rest of the mechanics are the same as for the squadron phase.

Also under "squadron phase" it points out that the player does not choose the next squadron to activate until the previous squadron has completed its activation.

Whilst you are asking about a squadron command, the rules for squadrons are the same, the command only allows x number to activate early - ahead of the squadron phase, and move and shoot, the rest of the mechanics are the same as for the squadron phase.

Exactly correct. Couldn't have said it better my self