| Term | History |
|---|
| 1 | Became a Engineer/Gunner at age 18 |
| 1 | Is now a Crewman |
| 1 | Vessel participates in a diplomatic mission. |
| 1 | Gain a contact. |
| 2 | Continued as Engineer/Gunner at age 22 |
| 2 | Refuse to abuse your position for profit |
| 2 | Promoted to Engineer/Gunner rank 1 |
| 2 | Is now a Able Spacehand |
| 3 | Continued as Engineer/Gunner at age 26 |
| 3 | Vessel participates in a notable military engagement. |
| 3 | Promoted to Engineer/Gunner rank 2 |
| 3 | Is now a Petty Officer, 3rd class |
| 4 | Continued as Engineer/Gunner at age 30 |
| 4 | Vessel participates in a notable military engagement. |
| 4 | Promoted to Engineer/Gunner rank 3 |
| 4 | Is now a Petty Officer, 2nd class |
| 5 | Continued as Engineer/Gunner at age 34 |
| 5 | Abuse your position for profit |
| 5 | Promoted to Engineer/Gunner rank 4 |
| 5 | Is now a Petty Officer, 1st class |
| 6 | Continued as Engineer/Gunner at age 38 |
| 6 | Advanced training in a specialist field |
| 6 | Promoted to Engineer/Gunner rank 5 |
| 6 | Is now a Chief Petty Officer |
| 7 | Continued as Engineer/Gunner at age 42 |
| 7 | You are blamed for an accident that causes the death of several crew members. Your guilt drives you to excel. |
| 8 | Became a Scientist at age 46 |
| 8 | Victim of a crime |
| 9 | Continued as Scientist at age 50 |
| 9 | Advanced training in a specialist field. |
| 10 | Continued as Scientist at age 54 |
| 10 | Assigned to work on a secret project for a patron or organisation. |