| Term |
Age |
History |
|---|
| 1 |
18 |
Entered the school of hard knocks. |
| 1 |
19 |
War breaks out, triggering a mandatory draft. |
| 1 |
22 |
Failed in the school of hard knocks. |
| 2 |
22 |
Became a Marine (Ground Assault) with the new title Marine. |
| 2 |
23 |
Commanding officer takes an interest in Isabel Fox's career. |
| 2 |
26 |
Promoted to Marine (Ground Assault) rank 1 with the new title Lance Corporal. |
| 3 |
26 |
Continued as Marine (Ground Assault). |
| 3 |
30 |
On the front lines of a planetary assault and occupation. |
| 3 |
30 |
Promoted to Marine (Ground Assault) rank 2 with the new title Corporal. |