Here is the full list of all 62 Ancestors Legacy Multiplayer Open Beta achievements.
Complete the basic training mission
Complete the squad training mission
Complete the economy training mission
Complete the base building training mission
Complete Ulf Ironbeard's campaign
Complete Rurik's campaign
Complete Edward's campaign
Complete Harold's campaign
Complete Rudolf's campaign
Complete Mieszko's campaign
Start a match in Multiplayer or against AI
Win a match in Multiplayer or against AI
Lose a match in Multiplayer or against AI
Win a Multiplayer match or AI Skirmish in less than 8 minutes.
Win a match against an AI on Insane difficulty
Specialize ten squads
Unlock a veterancy ten times
Replenish a squad ten times
Reach maximum level with any squad
Raise a squad's armor to its maximum level
Destroy a village with Gold defense
Destroy any building with a siege machine
Defeat each type of unit in the game at least once
Recruit each type of unit in the game at least once
Make an enemy trigger a trap you built
Detect and destroy five enemy traps
Send peasants to work at a resource point 50 times
Defeat an entire enemy squad with ranged attacks only
Raise the defense level of your village
Raise the alarm in your village
Help at least 8 drakkars survive the siege before Lindisfarne
Capture and hold all villages at Izborsk
Deliver 5 or more catapults before night-time at Wells
Kill Harald in less than 5 minutes at Stamford Bridge
Pick up all armors scattered behind Vienna's walls
Capture the village of Kopytko
Kill 2000 peasants
Sneak into the enemy base undetected
Don't let any of the enemy convoys pass through the outpost
Find out what happened to the villagers
Destroy all enemy ships
Don't let the enemy attack any of the catapults from your team
Complete Boleslav's campaign
Get rid of all the bandits and save all victims
Defend Lubawa using range units only
Capture all villages
Disarm all the traps undetected
Finish the map in less than 25 minutes.
Complete Konrad's campaign
Start Konrad's campaign
Do not lose any squad in mission Battle Of The Horns Of Hattin
Complete all quests with only one Hassassin squad in mission The Messengers Of Death
Claim all of the wells in mission Impatient Vengeance
Claim all the villages and expand your base in less than 30 minutes in The Last Straw mission
Kill all Christian preachers in Siege of Jerusalem mission
Complete Salah ad-Din Yusuf's campaign
Start Salah ad-Din Yusuf's campaign
Kill enemy hero in Multiplayer or Skirmish match with Hassassin's squad
Kill 5 enemy squads in 1 minute only using Grenadiers
Win a match on Desert And Wilderness, Crusade Of Anarchy or Scorching Quarrel
Win a match with Saracens in Anihilation Mode
Destroy enemy's Town Hall using Scorpio