| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Army (Infantry) with the new title Private. |
| 1 |
22 |
Advanced training in a specialist field |
| 1 |
22 |
Promoted to Army (Infantry) rank 1 with the new title Lance Corporal. |
| 2 |
22 |
Continued as Army (Infantry). |
| 2 |
24 |
Assigned to a peacekeeping role. |
| 2 |
26 |
Promoted to Army (Infantry) rank 2 with the new title Corporal. |
| 3 |
26 |
Continued as Army (Infantry). |
| 3 |
29 |
Assigned to an urbanised planet torn by war. |
| 3 |
30 |
Promoted to Army (Infantry) rank 3 with the new title Lance Sergeant. |
| 4 |
30 |
Continued as Army (Infantry). |
| 4 |
34 |
Surrounded and outnumbered by the enemy, Mack Baker hold out until relief arrives. |
| 4 |
34 |
Promoted to Army (Infantry) rank 4 with the new title Sergeant. |