My question is this. The rulebook clearly states that actions are to be taken alternating between players, except for disrupts. Well and good. But does a response count as its own action, or as part of the action that it is responding to? The rulebook would seem to indicate the former, while the FAQ would seem to indicate the latter (see the timing section and the sequence of action there).
So, specific example:
Operations Phase for Player A, Player A plays a Hungry Dark Young, and as its ability puts an Albino Goat-spawn into play from of his discard pile. Player B has in hand a Stalking Hound and a Horrifying Daydreams. He wants to put the Stalking Hound into play using its triggered response, but also wants to hit the Albino Goat-spawn with Horrifying Daydreams before Player A can have the chance to put an attachment on it that would make it immune to insanity. If Player B puts the Stalking Hound in play, does the opportunity for action go back to Player A - because that response is itself an action - or to Player B, because the response was technically part of Player A's action?