I think it would 18 dice right? (EW (6) + Intuition (6) + Hot-Sim (2) + CR (3) + "Disputed" Additional CR Bonus (1) = 18 Sensor Test?
You are correct. For some reason I'd used Logic 7 for the EWAR test, which is incorrect, thank you for catching that.
The problem with Aaron's rulings is cherry-picking the ones that actually seem right without making it appear that you're only grabbing interpretations that benefit you, it's tough to draw the line about what is appropriate and what isn't. For instance, he also ruled that Control Rigs don't come with a Hot-Sim mod as standard (which also makes little sense to me as I'm not sure why they would be restricted gear).
Gah, I hadn't seen that one! Shame on me for assuming the RCC comes with a hot-sim module, I guess; oh well, guess what I'm buying with my starting cash...
I'm glad we're getting this worked out now though, better to do so before it actually becomes an issue.
ETA: Aaron's answers aren't always the clearest either, although I think he does this intentionally when people ask him compound questions. I just noticed this post from Michael Chandra that I must have missed earlier which made me laugh.
Agreed; what does ETA, mean, by the way? I've seen it used on the forum before, but couldn't find any reference to that abbreviation beyond Estimated Time of Arrival, which I already knew.
And yes, Aaron definitely has a bit of a tongue-in-cheeck answering style at times. Also, definitely not trying to cherry pick; first time playing a rigger, so this is very educational. Thanks for chiming in!
Then either fire immediately...
I've fought about this one with folks before, but I think they're correct when they say that any use of the Gunnery skill (even a jumped in drone) is going to be a Complex Action. I don't like it, but it seems to be the case (it also helps to balance against the super initiatives of independently operating drones). So, Sensor Lock + Take Aim in one IP, then take the shot in IP 2 with significant bonuses. Also, there's no reason that a drone can't try to do a sensor lock or take aim outside of combat, IMO.
Rereading it, I agree. I think that was my initial thinking with using two Take Aim actions instead of just one; makes perfect sense to me, I probably just got excited of the Sensor Targeting section, forgetting that Gunnery does indeed seem like it always requires a Complex Action (which is a little ironic, if you ask me, given that everything a Rigger does, at least according to Aaron, seems to rely on the motor cortex anyway; why should pulling the trigger be any different, but oh well).
I also agree on being able to "set up" an attack ahead of time; a rigger shines with a good decker who can pinpoint target through walls for him; four drones with rifles = four potentially dead people and/or four very destroyed commlinks

Also also, I've PMed Celtibero so he doesn't need to trawl through this thread to answer the previous rigger related questions (man, Riggers got absolutely SHAFTED in SR5; so much confusion about their rules)
Also also also, Moto is going to stay the HELL out of teamworking negotiations, with his massive dice pool of 0 :p