There Came an Echo achievements

Sweep all twelve waves of the War Room.

Secure. Contain. Protect.

Escape from the weapon cache with at least one turret at perfect health.

Never allow the countdown to reach zero in Farrick's base.

Save one.

Never let a sniper in cover get a shot off.

Removed from the course of things.

Queue up and execute five simultaneous commands.

Complete a mission without switching weapons with any soldier.

She's back.

Damage four enemies at once with the Charge Gun.

You didn't see that coming.