| Term |
Age |
History |
|---|
| 1 |
12 |
Became a Dolphin Military (Underwater Commando) with the new title Private. |
| 1 |
15 |
A brutal amphibious warfare campaign forces Harper Coghill to spend as much time fighting out of water as in. |
| 2 |
16 |
Continued as Dolphin Military (Underwater Commando). |
| 2 |
20 |
Commanding officer takes an interest in Harper Coghill's career. |
| 3 |
20 |
Continued as Dolphin Military (Underwater Commando). |
| 3 |
24 |
Participate in a major sea battle |
| 3 |
24 |
Promoted to Dolphin Military (Underwater Commando) rank 1 with the new title Lance Corporal. |
| 4 |
24 |
Continued as Dolphin Military (Underwater Commando). |
| 4 |
25 |
Spend a lengthy period serving as an auxiliary aboard a spacecraft operating underwater, such
as a system defence boat. |
| 4 |
28 |
Promoted to Dolphin Military (Underwater Commando) rank 2 with the new title Corporal. |