Here is the full list of all 11 Hornet Virus: Steel Alcimus II achievements.
Complete Training.
Complete 15 missions.
Complete 30 missions.
Complete 45 missions.
Complete all missions.
Win the war in Campaign mode.
Survive 4 days in Raid mode.
Complete 4 Archipelagos in Air patrol mode.
Destroy 12 enemy aircrafts.
Perform NOE and destroy SAM launcher safely.
Rescue all hostages safely in mission 35.