I would name the Ship the Cascade. The newest and most advanced tri-surface ship. It can be an airship, submarine, or normal ship. It is fairly large and expansive and is powered by mana-magitech energy, and mechanical devices.

Magloria (Captain) - The ultimate authority on any ship, her word is law to all on board. The captain chooses where to sail, who fills the other stations aboard the vessel, among many other command decisions. Leadership often proves perilous, however, as a captain is, above all, meant to secure success for her ship and crew.

Magnolia (First Mare) - The second in command of the ship. She is customarily a watch stander, filling in for the captain when she is not on deck, and is in charge of the ship’s cargo and deck crew. She is responsible to the captain for the safety and security of the ship. She is also typically the officer in charge of personnel for a ship, whether that be managed through hiring, press-gangs, or other methods.

Starlight Glimmer (Navigator) -  Trained in and responsible for the steering and navigation of a sailing vessel. Main duty is navigation, taking the ship’s position at least daily and setting the sails as appropriate for the required course and conditions. She is responsible for fitting out the ship, and making sure it has all the sailing supplies necessary for the voyage. She is in charge of stowing the hold and ensuring the ship was not too weighted down to sail effectively. Through her subordinates, hoists and lowers the anchor, docks and undocks the ship, and inspects the ship daily for problems with the anchors, sails, masts, ropes, or pulleys. Issues are brought to attention to her, who would notify the captain. She is in charge of the entry of parts of the official log such as weather, position, and expenditures.

Rarity and Celestia (Boatswain) - They are responsible for the upper deck of the vessel and above. This makes Rarity and Celestia accountable for all rope, rigging, anchors, and sails. At the start of the day, they weigh anchor, raise the sails and report on the general condition of the ship’s deck to the captain. As she oversees many of the ship’s basic daily labors, the boatswain is often responsible for keeping discipline and dispensing punishment.

Twilight Sparkle (Scientist) - As a scientist she is concerned with developing new ways to deal with situations dealing with scientific processes and expermination.

Collapse (Chief Engineer) -  Collapse holds one of the most important positions aboard any vessel. She is chiefly responsible for maintaining the ship below the deck, finding and plugging leaks, repairing damage, and replacing masts and yards.

Opia (Surgeon) - She is responsible for the health of the people aboard a ship at sea, caring for the members of the ship and dealing with wounds from battle, disease, and other medical problems.

Zecora (Helmsmare) - Her sole duty is the steering of a ship. While any member of the crew may be able to hold the helm steady on the open sea, only the most skilled seamen will be given charge of maneuvering in restricted waters or other conditions requiring precise steering. She maintains a steady course, properly executes all rudder orders, and communicates to Starlight relating to ship’s heading and steering. Zecora reports directly to the Starlight. Zecora can also double as a surgeon when needed.

Nightmare Moon (Master-At-Arms) - Concerned with the security of the ship, the fitness of the crew, and the dispensing of justice, Nightmare Moon is one of the most feared of the ship's officers.

Trixie (Quarter Master and performer) - Trixie oversees the supplies and items stored aboard the ship. She maintains the supplies of food and weaponry, oversees the disbursement of food to the cook. Trixie also doubles as a performer on the ship as well to provide entertainment.

Maud (Master Gunner) - She is in charge of all shipboard artillery, ensuring moisture and rust don’t ruin the weapons and that the crew knows how to use them. Maud maintains the vessel’s cannons and firearms.

Saffron Massula (Cook) - While Spiral Spell normally allocates the rations, Saffron Massula and her apprentices make and distribute meals to the crew.

Spitfire (Weather Worker) - Those of this caliber always receive an officer’s pay. Spitfire is one of them. Spitfire reports to Magnolia, and will work directly with the Magnolia's and Zecora in the day-to-day steering of the ship. Spitfire is able to run a ship entirely by herself should it come down to it.

Cadence (Counselor) - Cadence is responsible for counseling duties for those on board that need it. Being on a ship is isolating, and sometimes emotional. Cadence is there for those who need it. She doubles as a Helmsmare.

Me (Cabin Boy) - Servant to the captain and other officers, I assist other sailors in their duties and runs various errands across the ship, requiring him or her to gain a measure of understanding of almost all the ship’s roles.

Minor Officers: Most officers aboard a ship have at least one “Mate” who reports directly to them, aid them in the performance of their duties, and fill in on deck when the officer is sleeping, injured, or on leave. Serving as a “Mate” is generally considered a direct line for promotion in the respective role, and a step above the general swabs and riggers.

Mates are as follows:

Rarity - Suri Polomare
Collapse - Jump Start, Arc Node
Opia - Nurse Red Heart
Zecora - Ms. Harshwhinny
Trixie - Applejack
Maud - Limestone Pie
Saffron Massula - Pinkie pie
Spitfire - Rainbow Dash
Cadence - Fluttershy, Cheerilee
Nightmare Moon - Spiral Spell, Moonlight Raven
Rarity/Celestia - Mayor Mare

Riggers: Riggers work the rigging and unfurl the sails. Riggers onboard include Lyra, Bon Bon, Colgate, Moondancer, Lemonhearts, TwinkleShine, Sunshine Smiles, and others.

Swabs: Those who are punished are made to clean and basically act as janitors. There is a random raffle in which all of the mates and minor officers rotate duties to where they act as Swabs for any given day.


DETENTION DECK
-jail cells
-interrogation
-isolation rooms

MEDICAL ROOMS
-surgery rooms
-main medical room
-Cryostasis tubes
-officer quarters
-DNA/cloning room
-physical therapy facilities
-X-ray/CAT scanner/other diagnostic graphing tools
-blood/samples testing

SECURITY
-armory
-training deck
-firing range

SCIENCE ROOMS
-science labs
-testing rooms

ENGINEERING
-shield generator
-engines
-mana generators
-power capacitors
-main engineering
-sewage
-life support

STORAGE BAYS
-cargo bay
-external access cargo bay
-plex storage bay

HANGAR
-main hangar
-vehicle bay
-construction bay
-repair bay
-drone bay
-officer quarters
-docking

COMMAND DECK
-bridge
-Astrometrics/Navigation room
-captain's ready room
-conference room/Diplomacy room
-hangar control
-fleet control
-command rooms (security grid control etc.)

OTHERS
-captain's quarters
-transporter room
-party room
-escape pods
-observation deck
-spare rooms
-Mobius chair docking
-Computer core
-Exercise room/gym

WEAPONS
-weapons
-missile/ammo storage
-weapon calibration room

PASSAGE WAYS
-main hall
-main elevator
-elevators
-halls
-maintenance hulls
-maintenance tubes
-turret access tubes

RANDOM
-basketball court
-Roller coaster
-Hot tubs
-bar
-Ferris wheel
-Merry-go-round
-Civilian docking and promenade
-pool
-greenhouse
-Trophy room
-pool table
-cheese locker
-wine cellar

Other rooms as needed.