| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Star Marine) with the new title Marine. |
| 1 |
20 |
Birth or Death involving a family member or close friend. |
| 1 |
22 |
Promoted to Marine (Star Marine) rank 1 with the new title Lance Corporal. |
| 2 |
22 |
Attempted to change assignments. |
| 2 |
22 |
Failed to qualify for Marine Support (Marine). |
| 2 |
22 |
Continued as Marine (Star Marine). |
| 2 |
26 |
A mission goes wrong and Butler Cochran is stranded behind enemy lines. Ejected from the service. |
| 3 |
26 |
Became a Navy (Line/Crew) with the new title Crewman. |
| 3 |
30 |
Commanding officer takes an interest in Butler Cochran's career. |
| 3 |
30 |
Promoted to Navy (Line/Crew) rank 1 with the new title Able Spacehand. |
| 4 |
30 |
Continued as Navy (Line/Crew). |
| 4 |
32 |
Vessel participates in a notable military engagement. |
| 4 |
34 |
Attempt at commissioned failed. |
| 4 |
34 |
Promoted to Navy (Line/Crew) rank 2 with the new title Petty Officer, 3rd class. |