| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Ground Assault) with the new title Marine. |
| 1 |
19 |
Betrayal. Convert an Ally into a Rival or Contact into an Enemy. |
| 1 |
22 |
Attempt at commissioned failed. |
| 1 |
22 |
Promoted to Marine (Ground Assault) rank 1 with the new title Lance Corporal. |
| 2 |
22 |
Voluntarily left Ground Assault |
| 2 |
22 |
Failed to qualify for Explorer (Scout). |
| 2 |
22 |
Submitted to the draft. |
| 2 |
22 |
Switched to Marine (Marine Support) with previous rank. |
| 2 |
25 |
Advanced training in a specialist field |
| 2 |
26 |
Promoted to Marine (Marine Support) rank 2 with the new title Corporal. |
| 3 |
26 |
Continued as Marine (Marine Support). |
| 3 |
29 |
Assigned to an assault on an enemy fortress. |
| 3 |
30 |
Promoted to Marine (Marine Support) rank 3 with the new title Lance Sergeant. |
| 4 |
30 |
Continued as Marine (Marine Support). |
| 4 |
31 |
Advanced training in a specialist field |
| 5 |
34 |
Attempted to change assignments. |
| 5 |
34 |
Failed to qualify for Ground Assault (Marine). |
| 5 |
34 |
Continued as Marine (Marine Support). |
| 5 |
38 |
Commanding officer takes an interest in Lyman Gibb's career. |
| 6 |
38 |
Attempted to change assignments. |
| 6 |
38 |
Failed to qualify for Star Marine (Marine). |
| 6 |
38 |
Continued as Marine (Marine Support). |
| 6 |
42 |
Assigned to an assault on an enemy fortress. |
| 6 |
42 |
Forced to continue current assignment |
| 6 |
42 |
Promoted to Marine (Marine Support) rank 4 with the new title Sergeant. |
| 7 |
42 |
Continued as Marine (Marine Support). |
| 7 |
46 |
Moved to a new world. |
| 7 |
46 |
Promoted to Marine (Marine Support) rank 5 with the new title Gunnery Sergeant. |
| 8 |
46 |
Continued as Marine (Marine Support). |
| 8 |
50 |
Display heroism in battle. |
| 8 |
50 |
Commissioned in Marine (Marine Support) with the new title Lieutenant. |
| 8 |
50 |
Promoted to Marine (Marine Support) officer rank 2 with the new title Captain. |