| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Law Enforcement (Agent). |
| 1 |
18 |
Submitted to the draft. |
| 1 |
18 |
Became a Army (Infantry) with the new title Private. |
| 1 |
20 |
Surrounded and outnumbered by the enemy, Preston Mckinney hold out until relief arrives. |
| 1 |
22 |
Promoted to Army (Infantry) rank 1 with the new title Lance Corporal. |
| 2 |
22 |
Continued as Army (Infantry). |
| 2 |
26 |
Given a special assignment or duty in Preston Mckinney's unit. |
| 3 |
26 |
Continued as Army (Infantry). |
| 3 |
29 |
Commanding officer takes an interest in Preston Mckinney's career. |
| 3 |
30 |
Promoted to Army (Infantry) rank 2 with the new title Corporal. |