Here is the full list of all 16 Air Conflicts: Pacific Carriers achievements.
Sink 5 destroyers in campaign game mode
Complete both USN Campaigns
Sink 20 ships in campaign mode
Successfully land on carrier at mission’s end
Reach maximum experience with any pilot (255)
Hit a manoeuvring ship with a torpedo
Shoot down 100 enemy planes in campaign mode
Sink a carrier in campaign game mode
Hit a moving ship with a torpedo
Complete both IJN Campaigns
Perform 3 kills in row in MP
Place in top half in multiplayer match with at least 6 players
Place first in multiplayer match with at least 6 players
Play 15 multiplayer matches to the end
Win 5 multiplayer matches with USN team
Win 5 multiplayer matches with IJN team