| Term |
Age |
History |
|---|
| 1 |
12 |
Failed to qualify for Army Academy (Military Academy). |
| 1 |
12 |
Submitted to the draft. |
| 1 |
12 |
Became a Dolphin Military (Guardian). |
| 1 |
14 |
Chris Herrera is assigned to a joint mission with an intelligence agency to catch spies or insurgents operating near underwater base facilities. Gain an intelligence agent as a Contact. |
| 1 |
16 |
Promoted to Dolphin Military (Guardian) rank 1. |
| 2 |
16 |
Voluntarily left Guardian |
| 2 |
16 |
Became a Agent (Intelligence). |
| 2 |
19 |
Advanced training in a specialist field. |
| 2 |
20 |
Promoted to Agent (Intelligence) rank 1 with the new title Agent. |
| 3 |
20 |
Continued as Agent (Intelligence). |
| 3 |
22 |
Befriended by a senior agent. |
| 3 |
24 |
Promoted to Agent (Intelligence) rank 2 with the new title Field Agent. |