| Term | History |
| 1 | Became a Engineer/Gunner at age 18 |
| 1 | Is now a Crewman |
| 1 | Refuse to abuse your position for profit |
| 1 | Promoted to Engineer/Gunner rank 1 |
| 1 | Is now a Able Spacehand |
| 2 | Continued as Engineer/Gunner at age 22 |
| 2 | Special assignment or duty on board ship. |
| 2 | Attempt at commissioned failed. |
| 2 | Promoted to Engineer/Gunner rank 2 |
| 2 | Is now a Petty Officer, 3rd class |
| 3 | Continued as Engineer/Gunner at age 26 |
| 3 | Vessel participates in a notable military engagement. |
| 3 | Attempt at commissioned failed. |
| 3 | Promoted to Engineer/Gunner rank 3 |
| 3 | Is now a Petty Officer, 2nd class |
| 4 | Continued as Engineer/Gunner at age 30 |
| 4 | Commanding officer takes an interest in your career. |
| 4 | Promoted to Engineer/Gunner rank 4 |
| 4 | Is now a Petty Officer, 1st class |
| 5 | Voluntarily left Engineer/Gunner |
| 5 | Became a Field Researcher at age 34 |
| 5 | Make a breakthrough in your field. |
| 5 | Promoted to rank 1 |
| 6 | Continued as Field Researcher at age 38 |
| 6 | Refuse to join a cheat in some fashion. |
| 6 | Promoted to rank 2 |
| 7 | Continued as Field Researcher at age 42 |
| 7 | Caught cheating in some fashion, advancing your career and research by stealing another’s work, using an alien device, taking a shortcut and so forth. |
| 7 | A rival researcher blackens your name or steals your research. Gain a Rival. |
| 7 | Gain an Enemy |
| 7 | Promoted to rank 3 |
| 8 | Continued as Field Researcher at age 46 |
| 8 | Refused to perform research that goes against your conscience. |
| 8 | Promoted to rank 4 |
| 9 | Continued as Field Researcher at age 50 |
| 9 | Refuse to join a cheat in some fashion. |
| 9 | Promoted to rank 5 |
| 10 | Continued as Field Researcher at age 54 |
| 10 | Work for an eccentric but brilliant mentor, who becomes an Ally. |
| 10 | Forced to continue current assignment |
| 10 | Promoted to rank 6 |