| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Star Marine) with the new title Marine. |
| 1 |
19 |
Display heroism in battle. |
| 1 |
22 |
Commissioned in Marine (Star Marine) with the new title Lieutenant. |
| 1 |
22 |
Promoted to Marine (Star Marine) officer rank 2 with the new title Captain. |
| 2 |
22 |
Attempted to change assignments. |
| 2 |
22 |
Failed to qualify for Ground Assault (Marine). |
| 2 |
22 |
Continued as Marine (Star Marine). |
| 2 |
23 |
Assigned to a black ops mission. |
| 2 |
26 |
Promoted to Marine (Star Marine) officer rank 3 with the new title Force Commander. |
| 3 |
26 |
Attempted to change assignments. |
| 3 |
26 |
Switched to Marine (Ground Assault) with previous rank. |
| 3 |
29 |
A mission goes disastrously wrong due to Harmon Howard's commander’s error or incompetence, but Harmon Howard survive. |
| 3 |
29 |
Report commander and gain an Enemy. |
| 3 |
30 |
Promoted to Marine (Ground Assault) officer rank 4 with the new title Lieutenant Colonel. |
| 4 |
30 |
Continued as Marine (Ground Assault). |
| 4 |
34 |
Assigned to a black ops mission. |
| 4 |
34 |
Promoted to Marine (Ground Assault) officer rank 5 with the new title Colonel. |
| 5 |
34 |
Continued as Marine (Ground Assault). |
| 5 |
36 |
Trapped behind enemy lines. |
| 5 |
38 |
Promoted to Marine (Ground Assault) officer rank 6 with the new title Brigadier. |
| 6 |
38 |
Continued as Marine (Ground Assault). |
| 6 |
39 |
Trapped behind enemy lines. |
| 6 |
42 |
Promoted to Marine (Ground Assault) officer rank 7. |