| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Marine Support) with the new title Marine. |
| 1 |
22 |
Commanding officer takes an interest in Devon Davidson's career. |
| 2 |
22 |
Continued as Marine (Marine Support). |
| 2 |
23 |
A mission goes disastrously wrong due to Devon Davidson's commander’s error or incompetence, but Devon Davidson survive. |
| 2 |
23 |
Cover for the commander and gain an Ally. |
| 3 |
26 |
Continued as Marine (Marine Support). |
| 3 |
27 |
On the front lines of a planetary assault and occupation. |
| 4 |
30 |
Attempted to change assignments. |
| 4 |
30 |
Switched to Marine (Star Marine) with previous rank. |
| 4 |
32 |
On the front lines of a planetary assault and occupation. |
| 4 |
34 |
Promoted to Marine (Star Marine) rank 1 with the new title Lance Corporal. |