Does Fearlessness work in auxiliary and rear arcs ?

Can u guys clarify it ?

Yes as the card only states that your/their firing arcs, and doesn't specify that it has to be primary etc.

Yup, any active arcs count. So, a Firespray's rear arc or shadowcaster's mobile arc into a Ghost's special arc at R1: gets Fearlessness. Etc.

Yup, any active arcs count. So, a Firespray's rear arc or shadowcaster's mobile arc into a Ghost's special arc at R1: gets Fearlessness. Etc.

Can you clarify what "active arc" means? If a VCX does not have a shuttle docked and it didn't have torpedoes, would you consider the special arc to be active?

Thank you guys

Yup, any active arcs count. So, a Firespray's rear arc or shadowcaster's mobile arc into a Ghost's special arc at R1: gets Fearlessness. Etc.

Can you clarify what "active arc" means? If a VCX does not have a shuttle docked and it didn't have torpedoes, would you consider the special arc to be active?

Yes.

I include the word 'active' because the mobile arc exists now. And only the one where the pointer is pointing and the primary are actually arcs.

The special arc is printed on the base, so it's always an arc for the purposes of anything that just references 'arc'.