Beginning of Turn 2, Player A has an Irregular Troop that Generated an Irregular Order for that turn, at the start of the Turn. That Troop goes into Null due to an ARO. Does it's Irregular Order stay "in effect", meaning, can I convert that Irregular Order into a Regular Order with a Command Token despite that Irregular Trooper being in a Null State now?
Yes, going into a Null state doesn't remove the order, it is generated at the start of the turn and exists until the end of the turn. I'm not aware of any rule that causes you to lose orders after they've been generated (except for command tokens, depending on timing).
Orders are generated at the beginning of the turn during order count. There is no rule that causes you to lose orders once generated. (Other than spending them of course) Feel free to convert with a command token.
Okay. Cool. Thank you. For some reason, I was thinking because an Irregular Order was only for that Trooper, that once s/he was Null, the Order would go away with the Model, as s/he is the only one who could use it anyways. Thank you.
The fact that the order does not go away is one of the things that led to the confusion (and FAQ) about Lt. orders with XO and CoC.
I was just about to mention that, where only the model that generated the LT order (or a model not the LT that is allowed to spend a LT order, like NCO), can spend that LT order. @ijw , can we get a confirmation that you can convert an Irregular order even if the Irregular trooper got Nulled by an ARO?
This trooper has learned to fight in an undisciplined, disorganized way, and can be expected to worry first and foremost about himself. Effects Irregular troopers do not add their Orders to the Order Pool of their combat group, but instead keep them for their own use. Bear in mind that these troopers can still receive Orders from the Order Pool. What about this part where it explicitly says that the irregular order provided by an Irregular Trooper is not added to the Order Pool? I can understand if the trooper is Unconscious, but what about Isolated or dead?
Do either of the Isolated or Dead states have an effect that discards or nullifies the Irregular Order? They don't, so the status of the trooper does not affect the status of the order once it has been generated. There's nothing in the rules that implies the Irregular Order of a Conscious trooper is treated any differently to that of an Unconscious, Dead, or Isolated one.
When substituting Irregular Orders with a Regular Order through Command Tokens, are those orders added to the trooper's pool or to any pool? We have been playing the latter, but I can't find that the rules enforce this. If it is the latter, then being Dead would possibly present a problem for this conversion.
By a strict reading of the rules converting an Irregular order to Regular does not add it into an Order Pool. Which technically means that no one can spend it now, because troopers can only accept Regular orders from the Order Pool. There has to be an implicit "and is added to the Order Pool" added to the RAW for the rule to even function.