First off, let me say that this is a devil's advocate question. I'm just trying to pre-emptively rules lawyer the question so I'm prepared in case it ever comes up.
QUESTION: How far does a firing arc extend?
Can I have a ship outside of Range 3 still be "within my firing arc?" For non-epic purposes, is a ship at "Range 4" that is in my firing arc still considered "in arc" for any game purposes that don't explicitly call for range, or does it need to be within my Range 3 "threatened" area as well?
Obviously, almost every card that calls for arc/no arc also specifies a range (see Flight Assist Astromech, First Order Vanguard), unless the effect is the same regardless of distance (see the rules for Reinforce). But I'm interested to see how people interpret this question...