| Term | History |
|---|
| 1 | Became a Wanderer at age 18 |
| 1 | Suffer from a life-threatening illness. |
| 2 | Became a Ground Assault at age 22 |
| 2 | Is now a Marine |
| 2 | Assigned to an assault on an enemy fortress. |
| 2 | Injured |
| 2 | Promoted to Ground Assault rank 1 |
| 2 | Is now a Lance Corporal |
| 3 | Continued as Ground Assault at age 26 |
| 3 | Assigned to the security staff of a space station. |
| 3 | Promoted to Ground Assault rank 2 |
| 3 | Is now a Corporal |
| 4 | Continued as Ground Assault at age 30 |
| 4 | On the front lines of a planetary assault and occupation. |
| 4 | Promoted to Ground Assault rank 3 |
| 4 | Is now a Lance Sergeant |
| 5 | Continued as Ground Assault at age 34 |
| 5 | On the front lines of a planetary assault and occupation. |
| 5 | Promoted to Ground Assault rank 4 |
| 5 | Is now a Sergeant |
| 6 | Continued as Ground Assault at age 38 |
| 6 | Assigned to an assault on an enemy fortress. |
| 6 | Injured |
| 6 | Promoted to Ground Assault rank 5 |
| 6 | Is now a Gunnery Sergeant |
| 7 | Voluntarily left Ground Assault |
| 7 | Became a Engineer/Gunner at age 42 |
| 7 | Is now a Crewman |
| 7 | Advanced training in a specialist field |
| 7 | Attempt at commissioned failed. |
| 7 | Promoted to Engineer/Gunner rank 1 |
| 7 | Is now a Able Spacehand |
| 8 | Continued as Engineer/Gunner at age 46 |
| 8 | Advanced training in a specialist field |
| 8 | Promoted to Engineer/Gunner rank 2 |
| 8 | Is now a Petty Officer, 3rd class |
| 9 | Continued as Engineer/Gunner at age 50 |
| 9 | Advanced training in a specialist field |
| 9 | Promoted to Engineer/Gunner rank 3 |
| 9 | Is now a Petty Officer, 2nd class |