| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Marine Academy (Military Academy). |
| 1 |
18 |
Became a Drifter (Scavenger). |
| 1 |
21 |
April Walker do not know what happened to April Walker. There is a gap in April Walker's memory. |
| 2 |
21 |
Entered University. |
| 2 |
25 |
Contacted by an underground psionic group. |
| 2 |
25 |
Dropped out of university. |
| 3 |
25 |
Voluntarily left Scavenger |
| 3 |
25 |
Became a Marine (Star Marine) with the new title Marine. |
| 3 |
29 |
April Walker is ordered to take part in a black ops mission that goes against April Walker's conscience. Gain the lone survivor as an Enemy. |
| 3 |
29 |
Tested for psionic powers |