Membership
Technically, anyone who is not a criminal is allowed admittance into the Fianna Mór. However, those with skills and experiences directly related to exploration, dungeoneering, engineering or arcane spellcraft are most often chosen for membership as those skills benefit the organization the most.
Rank & Renown
Strangely, rank and renown are earned through exploring new dungeons and mapping them. Fianna Mór describe dungeons as "Any enclosed, but not necessarily subterranean, ecosystem that is either naturally occurring or man-made designed to protect, hide or restrain treasure, secrets or entities via traps, supporting creatures or arcane malignancy." and require a completed map before anyone will recommend you for a higher position. This is the sole form of upward movement in the Fianna Mór; peer review.
Rank One: Delver
Prerequisites: Rank 1 and renown 10 or higher.
The first position of any Fianna Mór is Delver. Delvers are a sort of apprenticeship and, to ensure they not only get the most experience they can, but also survive to make use of that experience, Delvers are expected to foray first into dungeons when working with other members of the Fianna Mór. However, they do not go it alone, as during these times the most veteran member of the sortie accompanies them. They may also benefit from dormitories and dining halls at Fianna Mór Conclaves as as well as the benefits of trade deals in certain settlements.
You gain free room and board at Halla na Laochra or any Fianna Mór Conclave. Additionally, the mentorship afforded you in dungeons extends to Conclaves as well. When you Train during Downtime, you are assured a trainer in that skill is available at any Fianna Mór Conclave and costs for common gear are reduced by 10% in cities with a Fianna Mór Conclave.
Rank Two: Dungeoneer
Prerequisites: Rank 2 and renown 25 or higher.
At this rank, Fianna Mór likely have proved their worth by turning in a series of maps connected to various dungeons, delves and grottos. Their experiences have been mounting and they have a deep understanding, and respect, for those long-lost vaults hidden across the world. However, as the old saying goes, fortune and glory wait for none. When others speak in hushed tones of the ancient ruins in the hills, you merely grab a torch and your trusty ten-foot pole.
You gain the Trap Sense Edge without meeting the requirements. Additionally, you gain a Delver's Dowsing Rod, a devise that points the way to the exit the adventurer came in through. Incredibly useful for the larger, more labyrinthine dungeons and if lost can be replaced at cost at a Conclave. You no longer stay in dormitories and have a small, private room and bath at Fianna Mór Conclaves.
Rank Three: Dungeoneer Master
Prerequisites: Rank 3 and renown 50 or higher.
This is the final rank, the only higher rank is Bookkeeper, a dubious distinction. Those Fianna Mór that reach this rank are covered in a dungeon-map of scars. Each one telling of a trap that was slightly too quick, a monster slightly too strong, but in every case, never quick or strong enough to take out a Dungeoneer Master! You know every trick of the trade, every type of fungus and you've seen what horrors lurk in the shadows outside the torchlight. You are ready.
You gain the Favored Terrain Edge without meeting the requirements. Additionally, you gain a free reroll on any Skill roll you make in a dungeon.
Bookkeeper
The Bookkeeper is nominally "in charge" of the Fianna Mór, but really that means that they organize the many Conclaves and parties that are out there in the world. Fianna Mór do not use a real system of authority, although many listen to the Bookkeeper out of respect as they
are most often the most veteran of the most veteran delvers. Each Conclave has its own meritocratic way of determining who takes the lead among them.