| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Enforcer (Rogue). |
| 1 |
18 |
Submitted to the draft. |
| 1 |
18 |
Became a Merchant (Merchant Marine) with the new title Crewman. |
| 1 |
22 |
Promoted to Merchant (Merchant Marine) rank 1 with the new title Senior Crewman. |
| 2 |
22 |
Continued as Merchant (Merchant Marine). |
| 2 |
26 |
Forced to muster out. |
| 3 |
26 |
Became a Marine (Marine Support) with the new title Marine. |
| 3 |
29 |
On the front lines of a planetary assault and occupation. |
| 3 |
30 |
Commissioned in Marine (Marine Support) with the new title Lieutenant. |
| 4 |
30 |
Continued as Marine (Marine Support). |
| 4 |
31 |
Commanding officer takes an interest in Billie Callan's career. |
| 5 |
34 |
Continued as Marine (Marine Support). |
| 5 |
37 |
Assigned to an assault on an enemy fortress. |
| 5 |
37 |
Injured |
| 5 |
38 |
Promoted to Marine (Marine Support) officer rank 2 with the new title Captain. |
| 6 |
38 |
Continued as Marine (Marine Support). |
| 6 |
40 |
Assigned to a black ops mission. |
| 7 |
42 |
Continued as Marine (Marine Support). |
| 7 |
45 |
Assigned to an assault on an enemy fortress. |
| 7 |
45 |
Injured |
| 7 |
46 |
Promoted to Marine (Marine Support) officer rank 3 with the new title Force Commander. |