Here is the full list of all 16 There Came an Echo achievements.
The kid gloves are off.
Always fly Burbank.
Guide Corrin out of Ignite Defense.
Damage four enemies at once with the Charge Gun.
Don't be a dick.
Sweep all twelve waves of the War Room.
You didn't see that coming.
She's back.
Removed from the course of things.
Save one.
Secure. Contain. Protect.
Never let a sniper in cover get a shot off.
Never allow the countdown to reach zero in Farrick's base.
Escape from the weapon cache with at least one turret at perfect health.
Complete a mission without switching weapons with any soldier.
Queue up and execute five simultaneous commands.