| Term |
Age |
History |
|---|
| 1 |
12 |
Failed to qualify for Underwater Commando (Dolphin Military). |
| 1 |
12 |
Became a Dolphin Civilian (Nomad). |
| 1 |
13 |
Spend an extensive period living out of water among humans. |
| 2 |
16 |
Continued as Dolphin Civilian (Nomad). |
| 2 |
19 |
Spend an extensive period living out of water among humans. |
| 2 |
20 |
Promoted to Dolphin Civilian (Nomad) rank 1. |
| 3 |
20 |
Continued as Dolphin Civilian (Nomad). |
| 3 |
21 |
Brooks Barnett succeed at a dangerous mission to rescue people in a sinking vessel or underwater city. |
| 3 |
24 |
Promoted to Dolphin Civilian (Nomad) rank 2 with the new title Pod Leader. |
| 4 |
24 |
Continued as Dolphin Civilian (Nomad). |
| 4 |
28 |
Brooks Barnett is accidently trapped or shot by fishermen. Brooks Barnett successfully sue. |
| 5 |
28 |
Became a Marine (Star Marine) with the new title Marine. |
| 5 |
32 |
Assigned to the security staff of a space station. |
| 5 |
32 |
Attempt at commissioned failed. |
| 5 |
32 |
Promoted to Marine (Star Marine) rank 1 with the new title Lance Corporal. |