PointySeat

Frozen in Time Kill 50 Necromorphs while they are in Stasis (single player only)

...And Stay Down Kill 25 crawling enemies with Stomp (single player only)

Necro Flambé Kill 50 enemies using the Flamethrower

It's a Trap! Kill 20 enemies with Detonator Mines in a deployed state

C-Section Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up

Think Fast Kill 30 Necromorphs with Kinesis objects

Skewered in Space Impale an enemy into a Decompression Window to cause it to blow out

My Boom Stick Kill 6 enemies at once with Line Gun's Alt-Fire (single player only)

Under a Buck Shoot the deer head trophy in the Admiral's Quarters.

Shootbang Kill 30 Soldiers with head shots.

Fully Loaded Simultaneously have four completely upgraded weapons

Share and Share Alike Use the RIG to give an item to your Co-Op partner.

The Nanny Kill 30 Crawlers without detonating them

Epic Dismemberment Dismember 2,500 Necromorph Limbs (single player only)

Blast Corps Kill 30 enemies with explosion damage.

From the Jaws Save your Co-Op partner from an execution by killing the attacker.

Raider Complete a Raid.

Elevator Action Knock off every Tripod during the Elevator Sequence

Hunter Mastery Fully upgrade a Hunter Subclass.

Architect Share a Blueprint with your Co-Op partner.

Good to Go Upgraded your armor, weapon and sub-weapon.

Dropping Acid Dissolve 50 enemies with acid.

Solitary Ronin Completed a mission without allies.

The Satsuma-Choshu Alliance Persuaded Takamori Saigo.

Space Ace Shoot at least 70 targets during the ride to Tau Volantis.

The Battle of Toba-Fushimi Brought the Battle of Toba-Fushimi to an end.

The Dawn of a New Japan Cleared Chapter 3.

A Veiled Edge's Future Sealed the fate of your Blade Twin.

Traveling Through Time Retried a mission for the first time using the Testament of the Soul.

Vacuum Cleaner Decompress 20 Necromorphs without getting sucked out yourself

Cheater Beater Caught 5 cheaters while playing Odds and Evens.
1/5

Well-Rounded Ronin Reached Level 55.

Tears of a Blue Demon Managed to beat the Blue Demon aboard the Black Ship.

Ultimate Warrior Reach rank 20 with all roles.

Twilight Fencer Saved Ryoma Sakamoto's life.

The Greater Opportunity Saved Shinsaku Takasugi's life.

Cursed No More Purify a Cursed piece of gear.

Farewell, Black Cat Saved Soji Okita's life.

Midnight Crossing Completed an optional ronin mission with the "Midnight" difficulty setting enabled.

A Jack of One Trade is a Master of All Mastered one of the four stat types.

Friendly Neighborhood Ronin Completed all Bond Missions.
40/58

Mission Impossible Complete the game on Zealot setting

Social Climber Took part in missions with all available allies.
20/32

Ghosts of the Past Face all of Carver’s demons by completing all Co-Op only optional missions.

Rise of the Ronin Obtained all trophies.

Medic!  Revive your Co-Op partner 10 times.

The Explorer Complete all optional missions.

Sunbreaker Complete "The Sunbreakers' Challenge" quest.

Epic Raider Complete a Raid on hard difficulty.

Aliens Collect all Alien Artifacts.