Here is the full list of all 76 A.V.A. - there are Alliance of Valiant Arms achievements.
100 hours of playtime recorded in Infection mission matches
Level Up to Brigadier General
10000 kills achieved with Point Man primary weapon
100 hours of playtime recorded in Military Drill mission matches
10000 kills achieved with Sniper primary weapon
100 hours of playtime recorded in round based mission matches
1000 kills achieved with grenades
100 hours of playtime recorded in Annihilation mission matches
100 hours of playtime recorded in Escort mission matches
2500 kills achieved with secondary weapon
10000 kills achieved with Rifle Man primary weapon
20 hours of playtime recorded in Military Drill mission matches
20 hours of playtime recorded in Infection mission matches
2500 kills achieved with Sniper primary weapon
2500 kills achieved with Point Man primary weapon
500 kills achieved with secondary weapon
20 hours of playtime recorded in Escort mission matches
Level Up to Major Rank
2500 Headshot kills achieved
5 hours of playtime recorded in Military Drill mission matches
2500 kills achieved with Rifle Man primary weapon
20 hours of playtime recorded in round based mission matches
5000 deaths recorded in battle
5 hours of playtime recorded in Escort mission matches
500 kills achieved with melee weapon
5 hours of playtime recorded in Infection mission matches
20 hours of playtime recorded in Annihilation mission matches
250 kills achieved with grenades
5 hours of playtime recorded in round based mission matches
1 hour of playtime recorded in Military Drill mission matches
Level Up to Second Lieutenant Rank
500 kills achieved with Sniper primary weapon
100 kills achieved with melee weapon
Collected 15 kinds of badges at least once
500 Headshot kills achieved
Collected 15 medals or more
500 kills achieved with Rifle Man primary weapon
5 hours of playtime recorded in Annihilation mission matches
1000 deaths recorded in battle
1 hour of playtime recorded in Infection mission matches
1 hour of playtime recorded in round based mission matches
100 kills achieved with secondary weapon
Played at least 1 Suppression Mission match
500 kills achieved with Point Man primary weapon
Played at least 1 Cross Steal Mission match
Grenade 2
Played at least 1 Infection Mission match
Played at least 1 AI Demolition Mission match
1 hour of playtime recorded in Annihilation mission matches
100 Headshot kills achieved
Played at least 1 Free-For-All Mission match
200 deaths recorded in battle
Played at least 1 Escape Mission match
100 kills achieved with Point Man primary weapon
20 kills achieved with melee weapon
100 kills achieved with Sniper primary weapon
1 hour of playtime recorded in Escort mission matches
Level Up to Staff Sergeant Rank
Played at least 1 Demolition Mission match
20 Headshot kills achieved
Played at least 1 Annihilation Mission match
50 deaths recorded in battle
Played at least 1 Co-op Scenario Mission match
100 kills achieved with Rifle Man primary weapon
Played at least 1 Escort Mission match
5 kills achieved with melee weapon
20 kills achieved with secondary weapon
10 kills achieved with grenades
Played at least 1 Domination Mission match
1st time playing as a Sniper
Successfully create a character
Level Up to Private Rank
Play Point Man
1st time playing as a Rifle Man
1st game played after creating character
Played at least 1 Convoy Mission match