Here is the full list of all 18 Orion13 achievements.
Level 1 complete
Level 2 complete
Level 3 complete
Level 4 complete
Level 5 complete
1 Civilian Killed
50 Civilians Killed
100 Civilians Killed
Died 1 time
Died 25 times
Died 50 times
Killed 1 Soldier
killed 50 Soldiers
killed 100 Soldiers
killed 250 Soldiers
killed 500 Soldiers
killed 1000 Soldiers