| Term | History |
| 1 | Became a Cavalry at age 18 |
| 1 | Is now a Private |
| 1 | Given a special assignment or duty in your unit. |
| 1 | Promoted to Cavalry rank 1 |
| 1 | Is now a Lance Corporal |
| 2 | Voluntarily left Cavalry |
| 2 | Became a Engineer/Gunner at age 22 |
| 2 | Is now a Crewman |
| 2 | Moved to a new world. |
| 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 diplomatic mission. |
| 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 notable military engagement. |
| 5 | Promoted to Engineer/Gunner rank 4 |
| 5 | Is now a Petty Officer, 1st class |
| 6 | Continued as Engineer/Gunner at age 38 |
| 6 | You are tormented by or quarrel with an officer or fellow crewman. Gain that character as a Rival. |
| 7 | Switched to Line/Crew at age 42 |
| 7 | You foil an attempted crime on board, such as mutiny, sabotage, smuggling or conspiracy. Gain an Enemy. |
| 8 | Continued as Line/Crew at age 46 |
| 8 | Vessel participates in a notable military engagement. |
| 8 | Promoted to Line/Crew rank 5 |
| 8 | Is now a Chief Petty Officer |
| 9 | Continued as Line/Crew at age 50 |
| 9 | Vessel participates in a notable military engagement. |
| 10 | Continued as Line/Crew at age 54 |
| 10 | Special assignment or duty on board ship. |
| 10 | Promoted to Line/Crew rank 6 |
| 10 | Is now a Master Chief |