| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Ground Assault) with the new title Marine. |
| 1 |
21 |
On the front lines of a planetary assault and occupation. |
| 1 |
22 |
Attempt at commissioned failed. |
| 1 |
22 |
Promoted to Marine (Ground Assault) rank 1 with the new title Lance Corporal. |
| 2 |
22 |
Continued as Marine (Ground Assault). |
| 2 |
25 |
A mission goes disastrously wrong due to Gordon Guillan's commander’s error or incompetence, but Gordon Guillan survive. |
| 2 |
25 |
Cover for the commander and gain an Ally. |
| 2 |
26 |
Promoted to Marine (Ground Assault) rank 2 with the new title Corporal. |
| 3 |
26 |
Continued as Marine (Ground Assault). |
| 3 |
30 |
Assigned to the security staff of a space station. |
| 3 |
30 |
Promoted to Marine (Ground Assault) rank 3 with the new title Lance Sergeant. |
| 4 |
30 |
Continued as Marine (Ground Assault). |
| 4 |
32 |
Gained a contact. |
| 4 |
34 |
Promoted to Marine (Ground Assault) rank 4 with the new title Sergeant. |
| 5 |
34 |
Attempted to change assignments. |
| 5 |
34 |
Failed to qualify for Star Marine (Marine). |
| 5 |
34 |
Continued as Marine (Ground Assault). |
| 5 |
37 |
Advanced training in a specialist field |
| 5 |
38 |
Promoted to Marine (Ground Assault) rank 5 with the new title Gunnery Sergeant. |
| 6 |
38 |
Attempted to change assignments. |
| 6 |
38 |
Switched to Marine (Marine Support) with previous rank. |
| 6 |
40 |
Assigned to an assault on an enemy fortress. |