As noted in the section on Naval Ranks, sailors in most of the world's navies pick a specialty - their "Rating" - and direct their career accordingly.
I'll present a number of the most common "ratings" for surface warfare characters below:
Entry: No prerequisites.
First Term Skills - Select one of the following sets of skills (and note its title - this will be the "rating" that become part of the character's rank).
Boatswain's Mate: Seamanship or Small Boat Handling: 3
Builder: Construction 3
Diver (must have Con 6+): 4 points of Scuba and Construction, with more than 3 in either.
Gunner's Mate: Autogun, Small Arms, Autocannon, Tactical Missile or Heavy Artillery: 2, Mechanics or Warhead 1.
Sonarman: Computer 2, Observation 1
Radioman / Radarman / Fire Control Technician: 3 point chosen from Computer, Electronics.
Machinist: Machinist 3
Engineman: Mechanic 3
Electrician's Mate: Electronics 3
Hull Technician: Construction 2, Metallurgy 1
Cryptologic Technician: Computer 1, Electronics 2.
Cryptologist: Language 2, Computer 1
Hospital Corpsman: Medical (Trauma Care or Diagnostic/Therapeutic) 3
Nuclear Technician: (Must have Intelligence + Education 12+) (Nuclear Reactor 2, and either Electronics or Machinist 2)
Damage Control Technician: Firefighting and Construction to a max of 3.
Master At Arms: Small Arms 1, Unarmed Melee Combat 1, Persuasion 1
Quartermaster: Navigation 1, Computer 1, Observation 1
Subsequent Term Skills:
Autogun
Computer
Construction
Electronics
Firefighting
Language
Machinist
Mechanic
Medical
Scrounging
Seamanship (Optional, at referee's discretion - see special rules)
Small Arms
Watercraft
Swimming
Tactical Missile
Warhead
Promotion: 6+, DM +1 if INT 7+.
Contacts: One per term, military 1D10 for 8+ for the Contact to be loreis
Special: Characters with Education of 7+ may enter OCS. They receive a level 1 Leaderships skill and are commissioned as ensigns. They then resolve their term as officers.
Entry: OCS, National Military Academy or commission.
First Term Skllls:
Seamanship: 2
Navigation: 2
Subsequent Term Skills:
Hovercraft _
Instruction
Leadership
Navigation
Persuasion
Scuba
Seamanship (Optional, at referee's discretion - see special rules)
Small Arms
Small Watercraft
Swimming ‘
Promotion: tu, DM a
graduate of Military . '
Conlaclsszoper 3
for 7+ for the com”
Special; None.