| Term | History |
|---|
| 1 | Became a Engineer/Gunner at age 18 |
| 1 | Is now a Crewman |
| 1 | Special assignment or duty on board ship. |
| 1 | Promoted to Engineer/Gunner rank 1 |
| 1 | Is now a Able Spacehand |
| 2 | Continued as Engineer/Gunner at age 22 |
| 2 | Vessel participates in a diplomatic mission. |
| 3 | Continued as Engineer/Gunner at age 26 |
| 3 | A romantic relationship ends badly. Gain a Rival or Enemy. |
| 3 | Promoted to Engineer/Gunner rank 2 |
| 3 | Is now a Petty Officer, 3rd class |
| 4 | Continued as Engineer/Gunner at age 30 |
| 4 | Find an Alien Artifact. |
| 4 | Promoted to Engineer/Gunner rank 3 |
| 4 | Is now a Petty Officer, 2nd class |
| 5 | Continued as Engineer/Gunner at age 34 |
| 5 | Vessel participates in a diplomatic mission. |
| 5 | Promoted to Engineer/Gunner rank 4 |
| 5 | Is now a Petty Officer, 1st class |
| 6 | Continued as Engineer/Gunner at age 38 |
| 6 | Special assignment or duty on board ship. |
| 6 | Promoted to Engineer/Gunner rank 5 |
| 6 | Is now a Chief Petty Officer |
| 7 | Continued as Engineer/Gunner at age 42 |
| 7 | Refuse to abuse your position for profit |
| 7 | Promoted to Engineer/Gunner rank 6 |
| 7 | Is now a Master Chief |
| 8 | Continued as Engineer/Gunner at age 46 |
| 8 | Vessel participates in a diplomatic mission. |
| 8 | Gain a contact. |
| 8 | Promoted to Engineer/Gunner rank 7 |