| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Marine (Ground Assault) with the new title Marine. |
| 1 |
22 |
Assigned to the security staff of a space station. |
| 1 |
22 |
Attempt at commissioned failed. |
| 1 |
22 |
Promoted to Marine (Ground Assault) rank 1 with the new title Lance Corporal. |
| 2 |
22 |
Continued as Marine (Ground Assault). |
| 2 |
24 |
Assigned to a black ops mission. |
| 2 |
26 |
Promoted to Marine (Ground Assault) rank 2 with the new title Corporal. |
| 3 |
26 |
Attempted to change assignments. |
| 3 |
26 |
Switched to Marine (Marine Support) with previous rank. |
| 3 |
29 |
Commanding officer takes an interest in Houston Simmmons's career. |
| 3 |
30 |
Promoted to Marine (Marine Support) rank 3 with the new title Lance Sergeant. |
| 4 |
30 |
Continued as Marine (Marine Support). |
| 4 |
33 |
Assigned to an assault on an enemy fortress. |
| 5 |
34 |
Voluntarily left Marine Support |
| 5 |
34 |
Failed to qualify for Corporate (Citizen). |
| 5 |
34 |
Submitted to the draft. |
| 5 |
34 |
Became a Merchant (Merchant Marine) with the new title Crewman. |
| 5 |
36 |
Imperial trade restrictions force Houston Simmmons out of business. |
| 5 |
38 |
Promoted to Merchant (Merchant Marine) rank 1 with the new title Senior Crewman. |
| 6 |
38 |
Continued as Merchant (Merchant Marine). |
| 6 |
40 |
Given advanced training in a specialist field |
| 6 |
42 |
Promoted to Merchant (Merchant Marine) rank 2 with the new title 4th Officer. |
| 7 |
42 |
Continued as Merchant (Merchant Marine). |
| 7 |
46 |
Good fortune |
| 7 |
46 |
Promoted to Merchant (Merchant Marine) rank 3 with the new title 3rd Officer. |