| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Ground Assault) with the new title Marine. |
| 1 |
20 |
Assigned to an assault on an enemy fortress. |
| 1 |
20 |
Injured |
| 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 |
26 |
Assigned to the security staff of a space station. |
| 2 |
26 |
Attempt at commissioned failed. |
| 2 |
26 |
Promoted to Marine (Ground Assault) rank 2 with the new title Corporal. |
| 3 |
26 |
Continued as Marine (Ground Assault). |
| 3 |
27 |
Advanced training in a specialist field |
| 3 |
30 |
Attempt at commissioned failed. |
| 3 |
30 |
Promoted to Marine (Ground Assault) rank 3 with the new title Lance Sergeant. |
| 4 |
30 |
Continued as Marine (Ground Assault). |
| 4 |
32 |
Refused to take part in a black ops mission that goes against the conscience and ejected from the service. |
| 4 |
34 |
Attempt at commissioned failed. |
| 4 |
34 |
Promoted to Marine (Ground Assault) rank 4 with the new title Sergeant. |
| 5 |
34 |
Continued as Marine (Ground Assault). |
| 5 |
37 |
A mission goes disastrously wrong due to Omie Howlett's commander’s error or incompetence, but Omie Howlett survive. |
| 5 |
37 |
Cover for the commander and gain an Ally. |
| 5 |
38 |
Attempt at commissioned failed. |
| 5 |
38 |
Promoted to Marine (Ground Assault) rank 5 with the new title Gunnery Sergeant. |