Pfft. If you're going to do that, you may as well let play some point-buy system! And I should know - I've played and GMed lots of GURPS!
Let's try this again. I'll go through it all, then paste the finished character in blue at the end.
We'll call her Jenna Hotspur.
Stats, 46A884
Wow! This woman can only do about two push-ups, but can run for miles, has read a lot and is somewhat smart, pity she's low-class, but what can you do.
Let's enlist her in the Navy! You don't need muscles and class for that.
First Term: Enlistment (Navy) 8+... roll 10. Tired of being picked on for being weedy and low-class, Jenna decided at 18 to join the Navy, where she hoped to obtain a commission and be the one pushing others around for a change.
Navy, Per Devp, roll 1, +1 Strength
Navy, Service, roll 3, Fwd Obsvr +1
In the first year or two of her first term, she screwed up a bit on Recruit Course and had to do lots of pushups. As many as 10 in a row, she was amazed! They trained her in the direction of artillery. Then she tried out for a commission.
Commission 10+... roll 4. She was rejected.
Survival 5+, DM+1 if Int7+... roll 11. She did nothing dangerous. Still hoping for a good career, she went for a re-enlistment.
Second Term:
Re-enlistment 6+... roll 7. Accepted!
Navy, PersDvp, roll 3, +1 End
Navy, Service, roll 5, +1 Edu
The Navy saw how fit she was and entered her in inter-service marathon competitions, where she got fitter still. After her daily six hours training she had a lot of reading time and did a few general education courses. She couldn't understand why Education wasn't important in the Navy, and resented that only Social Class mattered.
Commission, 10+... roll 10. Commissioned as Ensign Hotspur
Advanced Education, roll 1, Vacc Suit+1
Promotion, 8+, DM+1 if Edu 8+, roll 7+1 = 8, promoted Lieutenant.
Advanced Education Plus, Navigation+1
As a newly-commissioned officer she became competent in the use of Vacc Suits, and a decent Navigator. Well-pleased with her performance, she applied for re-enlistment.
Survival 5+, DM+1 if Int7+... roll 4+1 = 5. Close! Only her wits saved her that time. Could we tie that in with her promotion and/or skills gained? Let's say that at some point an engineer - we'll call him "Dutchy" - was working outside, and caught by a minor micrometeroid storm. Jenna went out in her own vacc suit and saved his life. It was then she was promoted Lieutenant.
Third Term:
Re-enlist 6+, roll 10. Accepted!
Navy PerDvp, +1 Social
Navy Service, Ship's Boat+1
Now excited to finally be among important people who respected her, Jenna spent more time socialising and developing the connections which would improve her position. While her speech still reflected her low origins and would never allow her to be truly accepted, still things were improving for her. She was assigned to in-system duty and became competent at driving small ships.
Promotion 8+, DM+1 if Edu 8+... roll 6+1 = 7... just missed out. Her time socialising, and away from superiors' eyes in interplanetary work, kept her from the promotion she deserved.
Survival 5+, DM+1 if Int7+... roll 11+1 = 12. She never even went into Jumpspace in this third term, what could possibly go wrong? She wanted more, though.
Fourth Term:
Re-enlist 6+, roll 4. Rejected! Now fully out of sight of anyone of influence, Jenna couldn't even get another appointment, and at the age of 30, reluctantly packed her duffel bags to leave her tiny cabin. What did she have to show for twelve years of her life given to the Navy?
Mustering Out: (3 for 3 terms, +1 for Lt)
Navy Benefits, roll 5, Travellers' Aid (1x High Passage every two months) - perhaps Dutchy was connected?
Navy Benefits, roll 2, Int+1 - she's matured as a woman.
Navy Benefits, roll 4, Blade - got as an officer.
Navy Cash, roll 5, 20,000Cr - she saved her pennies.
____________________________
Jenna Hotspur
Navy-3 terms, Lt (ret), 30yo
56B995
Forward Observer-1, Navigation-1, Ship's Boat-1, Vacc Suit-1
TAS membership (1 High/2 months), Blade, 20,000Cr
____________________________
So in the end what we have is a young woman who came from very humble beginnings to seek a good life in the Navy, who worked hard and was ambitious. After taking some time to prove herself, she rose quickly, and won promotion and eventual TAS membership when she saved Dutchy's life, but then had bad luck with deployments and so fell into obscurity. She always carries with her the ceremonial sword granted her as a sign of her commission. She's got no idea how to use the damn thing off the parade ground, but she's proud of it; maybe when she settles down it'll hang on the wall. Now she can spend a year or two at leisure, as she has a High Passage every couple of months and 20,000Cr to keep her going. In this year or two she'll find her new destiny, perhaps as a pilot in-system somewhere.