Here is the full list of all 12 [TDA00] Muv-Luv Unlimited: THE DAY AFTER - there are Episode 00 achievements.
Witnessed the end of the world.
Rescued Lieutenant Lilia Kjellberg.
Finished Lilia's first day onboard the JFK.
Reached the end of the honeymoon period.
Embarked on a failed search and rescue mission.
Convinced Commodore Alston to hold a mass funeral for the JFK's fallen.
Spoke to Lilia and Melvina before the ceremony.
Participated in the JFK's Memorial Day ceremony.
Learned about the BETA's continued survival.
Failed to hold the line against the BETA.
Allowed Lilia to escape from the JFK.
Completed Muv Luv Unlimited: THE DAY AFTER - Episode 00!