Here is the full list of all 47 Band of Defenders achievements.
Reach level 30.
Win 50 games.
Kill 5 000 enemies.
Use 10 medkits.
Win Apocalyptic game.
Open 50 crates.
Play game with vendetta mask on your face.
Pick-up weapon dropped by other player.
Equip Epic knife skin.
Use 50 grenades.
Win Hard game.
Upgrade any turret to level 9 in-game.
Upgrade any barricade to level 9 in-game.
Reach level 10.
Win 10 games.
Win game on crossroads map
Win game on Radioactive Night map.
Play as a woman character.
Kill 500 enemies.
Have 100 headshot kills.
Reach level 5.
Unlock your fist Epic item.
Win game on Gas Station map.
Gain "Assist king" award.
Win Medium game.
Gain "Boss slayer" award.
Win Easy game.
Win game on Desert Ambush map.
Build 50 barricades in one game.
Send an in-game chat message.
Play game with equiped armor.
Finish in-game tutorial.
Gain "Punisher" award.
Gain "Turret master" award.
Gain "Protector" award.
Gain "Sniper" award.
Kill your first enemy.
Unlock all tiers of all turrets.
Unlock all tiers of all barricades.
Unlock all weapons (Weapons+Explosives+Medical).
Reach level 50.
Win 100 games.
Kill 20 000 enemies.
Lay 50 mines.
Use 100 medkits.
Play game with strawhat on your head.
Win game on hideout map