| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Star Marine) with the new title Marine. |
| 1 |
20 |
Assigned to an assault on an enemy fortress. |
| 2 |
22 |
Continued as Marine (Star Marine). |
| 2 |
24 |
Advanced training in a specialist field |
| 3 |
26 |
Continued as Marine (Star Marine). |
| 3 |
29 |
On the front lines of a planetary assault and occupation. |
| 3 |
30 |
Attempt at commissioned failed. |
| 3 |
30 |
Promoted to Marine (Star Marine) rank 1 with the new title Lance Corporal. |
| 4 |
30 |
Continued as Marine (Star Marine). |
| 4 |
31 |
A mission goes disastrously wrong due to Johnnie Harrison's commander’s error or incompetence, but Johnnie Harrison survive. |
| 4 |
31 |
Report commander and gain an Enemy. |
| 4 |
34 |
Commissioned in Marine (Star Marine) with the new title Lieutenant. |
| 4 |
34 |
Promoted to Marine (Star Marine) officer rank 2 with the new title Captain. |
| 5 |
34 |
Continued as Marine (Star Marine). |
| 5 |
36 |
Display heroism in battle. |
| 5 |
38 |
Promoted to Marine (Star Marine) officer rank 3 with the new title Force Commander. |
| 6 |
38 |
Attempted to change assignments. |
| 6 |
38 |
Failed to qualify for Marine Support (Marine). |
| 6 |
38 |
Continued as Marine (Star Marine). |
| 6 |
40 |
Johnnie Harrison is ordered to take part in a black ops mission that goes against Johnnie Harrison's conscience. Gain the lone survivor as an Enemy. |
| 6 |
42 |
Promoted to Marine (Star Marine) officer rank 4 with the new title Lieutenant Colonel. |
| 6 |
42 |
Forced to muster out. |