| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Ground Assault) with the new title Marine. |
| 1 |
20 |
Commanding officer takes an interest in Peyton Porter's career. |
| 1 |
22 |
Promoted to Marine (Ground Assault) rank 1 with the new title Lance Corporal. |
| 2 |
22 |
Voluntarily left Ground Assault |
| 2 |
22 |
Entered Military Academy(Army Academy) |
| 2 |
23 |
Suffered a deep tragedy. |
| 2 |
25 |
Dropped out of military academy. |
| 3 |
25 |
Continued as Marine (Ground Assault). |
| 3 |
28 |
Display heroism in battle. |
| 3 |
29 |
Attempt at commissioned failed. |
| 3 |
29 |
Promoted to Marine (Ground Assault) rank 2 with the new title Corporal. |