| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Marine Support) with the new title Marine. |
| 1 |
21 |
Assigned to the security staff of a space station. |
| 2 |
22 |
Attempted to change assignments. |
| 2 |
22 |
Failed to qualify for Star Marine (Marine). |
| 2 |
22 |
Continued as Marine (Marine Support). |
| 2 |
26 |
A mission goes disastrously wrong due to Grady Mahon's commander’s error or incompetence, but Grady Mahon survive. |
| 2 |
26 |
Cover for the commander and gain an Ally. |
| 2 |
26 |
Forced to muster out. |
| 3 |
26 |
Failed to qualify for Explorer (Scout). |
| 3 |
26 |
Submitted to the draft. |
| 3 |
26 |
Became a Navy (Engineer/Gunner) with the new title Crewman. |
| 3 |
27 |
Advanced training in a specialist field. |
| 3 |
30 |
Attempt at commissioned failed. |
| 4 |
30 |
Attempted to change assignments. |
| 4 |
30 |
Switched to Navy (Line/Crew) with previous rank. |
| 4 |
33 |
Commanding officer takes an interest in Grady Mahon's career. |
| 4 |
34 |
Promoted to Navy (Line/Crew) rank 1 with the new title Able Spacehand. |