Here is the full list of all 49 ACE COMBAT 7: SKIES UNKNOWN achievements.
Flew a total of 76,500 km in campaign mode.
Sortied 50 times in Team Death Matches.
Obtained 40,000,000 MRP in total.
Sortied 50 times in Battle Royal.
Destroyed all named aircraft in campaign mode.
Completed all campaign mode missions on ACE difficulty with an S rank.
Obtained all aircraft, special weapons, and upgrade parts.
Obtained a new medal in campaign mode after having already obtained 24 or more medals.
Sortied 20 times in Battle Royal.
Obtained 25,000,000 MRP in total.
Completed all missions in campaign mode on all difficulties.
Obtained 20 or more aircraft.
Destroyed a total of 3,000 enemies in campaign mode.
Obtained a total of 100 aircraft, special weapons, and upgrade parts combined.
Obtained 150 performance evaluations in multiplayer mode.
Obtained a new medal in campaign mode after having already obtained 9 or more medals.
Sortied 20 times in Team Death Matches.
Played all maps in multiplayer mode.
Obtained 50 performance evaluations in multiplayer mode.
Came first in Battle Royal.
Obtained a new medal in campaign mode after having already obtained 4 or more medals.
Played a match using Team Death Match and Battle Royal rules.
Played multiplayer mode for the first time.
Won a Team Death Match.
Completed all takeoffs, mid-air refuelings, and landings in each campaign mode mission.
Obtained 5,000,000 MRP in total.
Completed Mission 20 in campaign mode.
Completed campaign mode.
Completed Mission 19 in campaign mode.
Completed Mission 18 in campaign mode.
Completed Mission 17 in campaign mode.
Completed Mission 16 in campaign mode.
Completed Mission 15 in campaign mode.
Completed Mission 14 in campaign mode.
Completed Mission 13 in campaign mode.
Completed Mission 12 in campaign mode.
Completed Mission 11 in campaign mode.
Completed Mission 10 in campaign mode.
Completed Mission 09 in campaign mode.
Completed Mission 08 in campaign mode.
Obtained 5 or more aircraft.
Completed Mission 07 in campaign mode.
Completed Mission 06 in campaign mode.
Completed Mission 05 in campaign mode.
Completed Mission 04 in campaign mode.
Obtained a total of 15 aircraft, special weapons, and upgrade parts combined.
Completed Mission 03 in campaign mode.
Completed Mission 02 in campaign mode.
Completed Mission 01 in campaign mode.