| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Law Enforcement (Agent). |
| 1 |
18 |
Submitted to the draft. |
| 1 |
18 |
Became a Marine (Star Marine) with the new title Marine. |
| 1 |
21 |
Advanced training in a specialist field |
| 1 |
22 |
Forced to continue current assignment |
| 1 |
22 |
Promoted to Marine (Star Marine) rank 1 with the new title Lance Corporal. |
| 2 |
22 |
Continued as Marine (Star Marine). |
| 2 |
24 |
Trapped behind enemy lines. |
| 2 |
26 |
Promoted to Marine (Star Marine) rank 2 with the new title Corporal. |
| 3 |
26 |
Continued as Marine (Star Marine). |
| 3 |
28 |
Advanced training in a specialist field |
| 3 |
30 |
Promoted to Marine (Star Marine) rank 3 with the new title Lance Sergeant. |
| 4 |
30 |
Continued as Marine (Star Marine). |
| 4 |
32 |
Trapped behind enemy lines. |
| 4 |
34 |
Promoted to Marine (Star Marine) rank 4 with the new title Sergeant. |
| 5 |
34 |
Continued as Marine (Star Marine). |
| 5 |
35 |
A mission goes disastrously wrong due to Ervin Grain's commander’s error or incompetence, but Ervin Grain survive. |
| 5 |
35 |
Report commander and gain an Enemy. |
| 5 |
38 |
Promoted to Marine (Star Marine) rank 5 with the new title Gunnery Sergeant. |
| 6 |
38 |
Attempted to change assignments. |
| 6 |
38 |
Failed to qualify for Marine Support (Marine). |
| 6 |
38 |
Continued as Marine (Star Marine). |
| 6 |
41 |
Assigned to the security staff of a space station. |
| 6 |
42 |
Forced to muster out. |