Here is the full list of all 43 STAR WARS Battlefront II achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Reach Rank 50.
Defeat 25 Hero ships with Fighter ships.
Defeat 50 enemies using Dual Proton Torpedoes with the Bomber ship class.
Complete all unique Battle Scenarios.
Defeat 50 enemies in Heroes Vs Villains.
Defeat 500 enemies as a hero on any Multiplayer map.
In Multiplayer, get 25 headshots with longblaster rifles.
Complete the mission "Inferno".
Complete the mission "Ashes of the Empire".
Complete the mission "Project: Resurrection".
Reach Rank 25.
Destroy 25 objectives in Starfighter Assault.
Get 20 Killstreaks with Interceptor ships.
In Multiplayer, defeat 150 enemies with the Heavy's Sentry Gun.
Engage in an Arcade match.
Win a match of Strike.
Win one match in each Multiplayer game mode.
Win a match of Blast.
In Multiplayer, boost 100 allies with the Officer commands.
Complete 25 Multiplayer Milestones.
Play as all launch heroes in Multiplayer.
In Multiplayer, defeat 3 enemies within one Vanguard usage 5 times.
Be the first one to defeat an enemy in a Multiplayer match.
Win a match of Starfighter Assault.
Complete the mission "Discoveries".
Complete the mission "Until Ashes".
Complete the mission "The Battle of Jakku".
In the Campaign, destroy eight starfighters in the skies of Jakku.
Complete the mission "Cache Grab".
Complete the mission "Under Covered Skies".
Complete the mission "General Distress".
Complete the mission "Royalty".
Complete the mission "The Outcasts".
Complete the mission "The Storm".
In the Campaign, eliminate a Scout Trooper with Iden’s melee takedown.
Complete the mission "The Observatory".
Complete the mission "The Dauntless".
Complete the mission "The Battle of Endor".
In the Campaign, eliminate five enemies at once using the Barrage.
In the Campaign, use the Droid to shock three enemies at once.
Win a match of Heroes vs Villains
Win a match of Galactic Assault.
Complete the mission "The Cleaner".