The problem is that you cannot request a temporary ID, SRP-style, for the construction of a faction before officialdom is reached. This means everyone uses FL ID, which, whilst granting significant freedom, does chain people to prescriptive activity types. Or you have to use an individualised ID and accept the associations there.
Unless you're a tenuously connected fraternity like Forlorn Hope, the idea of a 'Faction of Freelancers' is pretty nebulous.
THE SYNDIC LEAGUES
(A co-operative of Rheinland's Shipping Unions, retired from a life of piracy.)