1. Shooting while jumped in: Pilot rating + gunnery + CR rating + VR ?
this one is up to interpretation, i personally when my rigger is Hot Simming and jumped into a drone use Logic+Gunnery+CR rating+ Smartlink+hot sim bonus, the argument here is, should it be logic or should it be agility... my $$$ is on Logic.... but YMMV As far as AR goes I could be wrong about this next statement but whenever i AR a drone, im basically commanding it what to shoot, and instead of my die pools it is using its die pools EX: Pilot + autosoft rating + smartlink+aim actions (if applicable)
1a. Can you use a smartgun on the drone?
Why not? in my above example i am. havent been hit with the SR5 CRB yet....
2. AR gunnery is a Dexterity based skill not Reaction?
See Q1, the argument is that jumped in gunnery (Hot/Cold sim) is Logic, and not Agility. and again AR drone control (until im told otherwise) i always play it as im pointing at the target, the drone is firing the shot, therefore its using its die pools as listed in Q1
3. (more of a char creation question, but for simplicity asking here) Which is more useful to a rigger, intuition or logic?
YES! to me both are equally important, basically because i use my rigger primarily as a surveillance rigger, perception checks out the wazoo. i have drones specifically designed to stealth their way in and observe and relay back. however depending on if your planning on Hot/Cold simming and your group is of the same view as mine, Logic would be the most important.
hope this helps, and as stated above, this is how my group plays it, if yours wants to do something else play the game and enjoy however you want to, the most important thing is that you have fun!