| Term | History |
| 1 | Became a Ground Assault at age 18 |
| 1 | Is now a Marine |
| 1 | On the front lines of a planetary assault and occupation. |
| 1 | Promoted to Ground Assault rank 1 |
| 1 | Is now a Lance Corporal |
| 2 | Continued as Ground Assault at age 22 |
| 2 | A mission goes wrong and you are stranded behind enemy lines. Ejected from the service. |
| 3 | Became a Thief at age 26 |
| 3 | Moved to a new world. |
| 3 | Promoted to rank 1 |
| 4 | Voluntarily left Thief |
| 4 | Became a Explorer at age 30 |
| 4 | Spend several years jumping from world to world in your scout ship. |
| 5 | Continued as Explorer at age 34 |
| 5 | Find an Alien Artifact. |
| 5 | Promoted to rank 1 |
| 5 | Is now a Scout |
| 6 | Voluntarily left Explorer |
| 6 | Became a Engineer/Gunner at age 38 |
| 6 | Is now a Crewman |
| 6 | Special assignment or duty on board ship. |
| 6 | Promoted to Engineer/Gunner rank 1 |
| 6 | Is now a Able Spacehand |
| 7 | Continued as Engineer/Gunner at age 42 |
| 7 | Vessel participates in a notable military engagement. |
| 7 | Promoted to Engineer/Gunner rank 2 |
| 7 | Is now a Petty Officer, 3rd class |
| 8 | Continued as Engineer/Gunner at age 46 |
| 8 | Advanced training in a specialist field |
| 8 | Promoted to Engineer/Gunner rank 3 |
| 8 | Is now a Petty Officer, 2nd class |
| 9 | Continued as Engineer/Gunner at age 50 |
| 9 | Vessel participates in a notable military engagement. |
| 9 | Forced to continue current assignment |
| 9 | Promoted to Engineer/Gunner rank 4 |
| 9 | Is now a Petty Officer, 1st class |
| 10 | Continued as Engineer/Gunner at age 54 |
| 10 | Good fortune |
| 10 | Forced to muster out. |
| 11 | Became a Free Trader at age 58 |
| 11 | Your ship or starport is destroyed by criminals. Gain them as an Enemy. |
| 12 | Returned to Engineer/Gunner at age 62 |
| 12 | Vessel participates in a notable military engagement. |
| 12 | Forced to muster out. |
| 13 | Aging Crisis. Owe 60,000 for medical bills. |
| 13 | Retired at age 66 |
| 13 | Betrayal. Convert an Ally into a Rival or Enemy. |
| 14 | Aging Crisis. Owe 10,000 for medical bills. |