Army of Two
Complete a mission with "Tougher Enemies" mission modiier enabled, with just one other player.
Chain Reaction
Cause a Zodiac to detonate, and have its explosion take out another Zodiac.
Deus Ex Machina
Reach Echo Rank 30.
Ego Sum
Reach Echo Rank 10.
Fashionista
Customize a Sentinel's chassis colors.
Hold... Hold... NOW!
Hold a Plasma Rifle charge for over 10 seconds, then release it and hit an enemy with the supercharged blast.
It's Dangerous To Go Alone
Complete a mission with at least one more player in your squad.
Line 'Em Up, Shoot 'Em Down
Hit 4 or more enemies with a single shot from the Railgun.
Live. Die. Repeat.
Be reconstructed at least three times during one mission.
Lone Wolf
Complete a mission with "Tougher Enemies" mission modifier enabled, while playing solo.
More Than Just Bytes
Reach Echo Rank 20.
No Sentinel Left Behind
Complete a 4-player mission with everyone alive at extraction.
Not All Those Who Wander Are Lost
Complete a mission in every sector.
Now You See Me...
Kill a Specter while it's invisible.
Premature Detonation
Cause a Zodiac to detonate by shooting at it.
Ready for Action
Secure a foothold on the Trident (Complete the introduction mission).
Sector Clear
Reclaim your first sector on the Trident.
Sharpshooter
Complete a mission with over 80% accuracy.
Squad Assault
Complete any mission with a 4-player squad.
Strike Back
You have reclaimed all compromised sectors of the Trident.
The Usual Suspects
Kill one enemy of each type.
Tinkerer
Fully upgrade one weapon.
To Hell And Back
Complete a mission with High Enemy Pressence without any Sentinel loss.
Transcending Conciousness
Complete at least one mission with each Sentinel.
Unleaded
Have one enemy receive the full impact of one Shotgun blast.
Well-rounded
Complete a mission in which there are three different Sentinels in your squad.