| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Ground Assault) with the new title Marine. |
| 1 |
20 |
On the front lines of a planetary assault and occupation. |
| 1 |
22 |
Commissioned in Marine (Ground Assault) with the new title Lieutenant. |
| 1 |
22 |
Promoted to Marine (Ground Assault) officer rank 2 with the new title Captain. |
| 2 |
22 |
Continued as Marine (Ground Assault). |
| 2 |
24 |
On the front lines of a planetary assault and occupation. |
| 2 |
26 |
Promoted to Marine (Ground Assault) officer rank 3 with the new title Force Commander. |
| 3 |
26 |
Attempted to change assignments. |
| 3 |
26 |
Switched to Marine (Marine Support) with previous rank. |
| 3 |
28 |
Commanding officer takes an interest in Evan Spencer's career. |
| 3 |
30 |
Promoted to Marine (Marine Support) officer rank 4 with the new title Lieutenant Colonel. |
| 4 |
30 |
Continued as Marine (Marine Support). |
| 4 |
31 |
Advanced training in a specialist field |
| 4 |
34 |
Promoted to Marine (Marine Support) officer rank 5 with the new title Colonel. |