| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Marine Support) with the new title Marine. |
| 1 |
19 |
Commanding officer takes an interest in Preston Simmmons's career. |
| 1 |
22 |
Promoted to Marine (Marine Support) rank 1 with the new title Lance Corporal. |
| 2 |
22 |
Continued as Marine (Marine Support). |
| 2 |
24 |
Advanced training in a specialist field |
| 2 |
26 |
Promoted to Marine (Marine Support) rank 2 with the new title Corporal. |
| 3 |
26 |
Continued as Marine (Marine Support). |
| 3 |
30 |
Advanced training in a specialist field |
| 4 |
30 |
Continued as Marine (Marine Support). |
| 4 |
31 |
A mission goes disastrously wrong due to Preston Simmmons's commander’s error or incompetence, but Preston Simmmons survive. |
| 4 |
31 |
Cover for the commander and gain an Ally. |
| 5 |
34 |
Continued as Marine (Marine Support). |
| 5 |
36 |
Advanced training in a specialist field |
| 6 |
38 |
Continued as Marine (Marine Support). |
| 6 |
39 |
Assigned to an assault on an enemy fortress. |
| 6 |
42 |
Promoted to Marine (Marine Support) rank 3 with the new title Lance Sergeant. |
| 7 |
42 |
Continued as Marine (Marine Support). |
| 7 |
43 |
Assigned to the security staff of a space station. |
| 7 |
46 |
Promoted to Marine (Marine Support) rank 4 with the new title Sergeant. |