| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Army Academy (Military Academy). |
| 1 |
18 |
Submitted to the draft. |
| 1 |
18 |
Became a Marine (Ground Assault) with the new title Marine. |
| 1 |
19 |
Assigned to the security staff of a space station. |
| 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 |
A mission goes wrong and Willie Greerson is stranded behind enemy lines. Ejected from the service. |
| 3 |
24 |
Became a Army (Infantry) with the new title Private. |
| 3 |
26 |
Surrounded and outnumbered by the enemy, Willie Greerson hold out until relief arrives. |
| 3 |
28 |
Attempt at commissioned failed. |
| 3 |
28 |
Promoted to Army (Infantry) rank 1 with the new title Lance Corporal. |