| Term | History |
| 1 | Became a Ground Assault at age 18 |
| 1 | Is now a Marine |
| 1 | Advanced training in a specialist field |
| 1 | Promoted to Ground Assault rank 1 |
| 1 | Is now a Lance Corporal |
| 2 | Continued as Ground Assault at age 22 |
| 2 | Advanced training in a specialist field |
| 2 | Promoted to Ground Assault rank 2 |
| 2 | Is now a Corporal |
| 3 | Continued as Ground Assault at age 26 |
| 3 | You are ordered to take part in a black ops mission that goes against your conscience. Gain the lone survivor as an Enemy. |
| 4 | Became a Engineer/Gunner at age 30 |
| 4 | Is now a Crewman |
| 4 | A romantic relationship ends badly. Gain a Rival or Enemy. |
| 4 | Promoted to Engineer/Gunner rank 1 |
| 4 | Is now a Able Spacehand |
| 5 | Continued as Engineer/Gunner at age 34 |
| 5 | You are tormented by or quarrel with an officer or fellow crewman. Gain that character as a Rival. |
| 6 | Switched to Line/Crew at age 38 |
| 6 | Commanding officer takes an interest in your career. |
| 6 | Promoted to Line/Crew rank 2 |
| 6 | Is now a Petty Officer, 3rd class |
| 7 | Continued as Line/Crew at age 42 |
| 7 | Advanced training in a specialist field |
| 8 | Continued as Line/Crew at age 46 |
| 8 | Gained a contact. |
| 8 | Promoted to Line/Crew rank 3 |
| 8 | Is now a Petty Officer, 2nd class |
| 9 | Voluntarily left Line/Crew |
| 9 | Returned to Engineer/Gunner at age 50 |
| 9 | Commanding officer takes an interest in your career. |
| 9 | Promoted to Engineer/Gunner rank 4 |
| 9 | Is now a Petty Officer, 1st class |