Besko

No Stone Unturned Confiscate all of the contraband and read all of the notes in 'Following Orders'.

No Harm Done Obtain the defector's location in 'Following Orders' without hurting any civilians.

Can't touch this Defeat Makarov on Veteran difficulty or higher without getting hit in the alley.

Safety's On Defeat all enemies in the kitchen of 'Out in the Cold' without firing your gun on Hardened or harder

Skeet Shooting Kill 10 paratroopers in 'Mayhem' before they hit the ground.

War Within Reach maximum Corruption level and survive.

Never Let Go Complete Act 1.

Architect Defeat the Overlord of the Desecrated Fortress.

Timeless Tomes Find all skulls and terminals in The Library.
100/100

Making a Necklace Collect 22 Skulls.
100/100

Angle Of Attack Defeat a hostile using a ricochet Nova Lance slug.

Stowed in Snow Find all skulls and terminals in Assault on the Control Room.
100/100

Proto Gravemind Find all skulls and terminals in 343 Guilty Spark.
100/100

Bad Gas Destroy 100 Grunt backpacks.
100/100

Clean Sweep Find all skulls and terminals in Pillar of Autumn.
100/100

Successful Search Find all skulls and terminals in Halo.
100/100

Plundered Find all skulls and terminals in Truth and Reconciliation.
100/100

Buried Treasure Find all skulls and terminals in Silent Cartographer.
100/100

Legion Defeat the Overlord of the Blighted Marsh.

Rhabdom Defeat the Overlord of the Shattered Descent.

Avengers, Assemble! Clear the Fighting Avengers scenario in Episode mode.

Super Human Precision Successfully land 10 Super Skills during battle. (Excluding Offline Versus and Training mode.)
10/10

Wall Breaker Trigger 10 Breaks during battle. (Excluding Offline Versus and Training mode.)
10/10

With Great Power Comes Great Responsibility Clear the Amazing Guardians scenario in Episode mode.

The Ultimates Successfully land 10 Ultimate Skills during battle. (Excluding Offline Versus and Training mode.)
10/10

Smash! Successfully land Assemble Smash 10 times during battle. (Excluding Offline Versus and Training mode.)
10/10

It's Showtime Defeat the Promoter in the Episodes.

Everybody Needs a Hobby Customize your avatar.

The Prelude to Battle Clear the Startup Battle.

Strange Is The Night Enter the Banyan Tree for the first time.

Bastion Defeat the Overlord of the Ancient Depths.

Dust & Echoes Evolved Complete The Maw.

Greenhorn Complete the Campaign on Easy Difficulty.
100/100

Birth of a Spartan Complete the Campaign on Normal Difficulty.
100/100

Heroes Never Die Complete the Campaign on Heroic Difficulty.
100/100

Clean Lap On The Maw complete the warthog run without being forcibly ejected from your vehicle.

Captain’s Orders Complete Keyes.

Control Alt Delete Complete Assault on the Control Room.

This Stuff is Your History Complete 343 Guilty Spark.

Protocol Dictates Action Complete The Library.

Double Trouble Complete Two Betrayals.

Cranial Collect a Skull.

Disarmed Dismember 100 Flood parts.
100/100

That’s My Ride On Assault on the Control Room get to the Banshee before the Elite.

Plate Tectonics Break off 25 Hunter backplates.
100/100

Claims Adjuster Break off 50 Vehicle parts.
100/100

Bee Thirty Complete Silent Cartographer.

Infiltration Anticipation Complete Truth and Reconciliation.

Installation 04 Complete Halo.

Make Them Count Kill 100 enemies with headshots.
100/100