which attribute does a Rigger use to shoot if jumped in? Agility in ALL cases UNLESS there is a Sensor Lock, in which case it becomes Logic.
Please think twice before you start applying different attributes depending on if you are using remote control via AR, remote control via VR or remote control via VR while jumped in (unless you guys decide to change it for missions you currently use the same attribute in all three cases).
Core is clear that you always use Logic when firing
vehicle-mounted weapons via remote operation (SR5 p. 183 Gunnery).
Core is also clear that you always use Logic when firing via
passive sensor targeting (SR5 p. 184 Passive Targeting). In this case you also replace accuracy with sensor.
However, when it comes to
drone-mounted weapons the book is less clear. It is only mentioned at one location (SR5 p. 283 Control Device) and on this spot it actually does use Agility (as you suggest in your post).
Perhaps the intention with the rule I quoted was that it would only apply for
drone-mounted weapons (and that
vehicle-mounted weapons would continue to always use Logic)?
let's say a Rigger has a drone with a ...
I think he is trying to say that IF
a rigger jump into a drone THEN it can assist a human or a drone in a teamwork test. But only if it make sense to the GM that the rigger controlled drone actually can assist with the test in the first place.
If a rigger is
not jumped into a drone then a drone may only assist another drone that is slaved to the same RCC. But only if it make sense to the GM that it can assist with the test in the first place.