Daily Ops: Decryption is a Daily Op introduced in the Fallout 76 update Locked and loaded.

Quick walkthrough

Daily Ops: Decryption
Enter further into the location to start the quest timer.
Track and Eliminate Enemies
Eliminate Carrier to Obtain First Code
Disable Any Radio Interceptor
Track and Eliminate Enemies
Eliminate Carrier to Obtain Second Code
Disable Either Remaining Radio Interceptor
Track and Eliminate Enemies
Eliminate Enemy Leader to Obtain Final Code
Disable the Final Radio Interceptor
Reward: 300 XP, 25-500

Detailed walkthrough

Upon joining the Daily Op, Initiate Dodge will contact the player characters, starting the timer for the duration the Daily Op takes to complete. He asks that they track and eliminate enemies to attract the code carriers. At this point, the first eight enemies listed in the Daily Op will start attacking. These enemies have been scattered across the map.

Dodge will warn players to maintain stealth or be quick with their kills, as the enemies are much stronger than usual and can down them in short order. (The enemies ignore 100% of all armor, with the exception of damage reduction perks and effects like power armor, Dodgy, or the Overeater's Legendary mod. Otherwise, they can kill anyone in 1-3 shots.)

Once the first eight enemies have been killed, Dodge will then request that players to eliminate the code carrier. Normally these carriers will spawn close to at least one of the radio interceptors and at least three will be marked for elimination due to Dodge being unsure which one is the code carrier. (The enemy that is carrying the code will have more health than the other two). Once the first carrier is killed, Dodge will then request that the players shut down an interceptor. After that, the sequence is repeated for the second interceptor, requiring 10 enemies this time to spawn the trio of code carriers because of Dodge's inaccurate intel, then once more with killing 12 of them to attract the enemy leader, which Dodge identifies as the final code carrier due to more accurate info. Finally, Dodge assigns the players to eliminate the enemy leader for the final code.

After defeating the enemy leader, the final step is to disable the final radio interceptor. After this, Dodge calls in to report mission accomplished. Players will then teleport back to the location that they were at prior to joining the op, and depending on how quick the op was finished, rewards will be given accordingly.

Rewards

Daily Ops rewards
Base Tier ()	Initiate Tier ()
(300) XP (25-500) caps Random Legendary item	Daily Ops item (5% chance) (500) Additional XP
Paladin Tier ()	Elder Tier ()
Daily Ops item (10% chance) (1) Additional random Legendary item	Daily Ops item Chance for (25-500) Additional caps Chance for (5-50) Additional Legendary scrips Chance for (2) Additional Treasury Notes Chance for (1-3) Legendary modules

Rewards
Base Tier ()
(300) XP (25-500) caps (1) Random Legendary item
Initiate Tier ()
(800) XP (25-500) caps (1) Random legendary item Daily Ops item
Paladin Tier ()
Daily Ops item (10% chance) (1) Additional random Legendary item
Elder Tier ()
Daily Ops item Chance for (25-500) Additional caps Chance for (5-50) Additional Legendary scrips Chance for (2) Additional Treasury Notes Chance for (1-3) Legendary modules

Daily Ops Items

Note: Items marked with * may only be received if that plan has not already been learned.

Quest stages

v · d · e Fallout 76 quests Main quests (at release) Overseer Reclamation Day · First Contact · The New Arrivals · Overseer, Overseen Responders Thirst Things First · Second Helpings · Final Departure · An Ounce of Prevention · Into the Fire (Runner's High) · The Missing Link Raiders Signal Strength · Flavors of Mayhem · Key to the Past Free States Early Warnings · Reassembly Required · Coming to Fruition Brotherhood of Steel Defiance Has Fallen · Recruitment Blues · Back to Basic (Marksmanship Course · Agility Course · Patriotism Training · Live Fire Training Exercise) · Belly of the Beast Enclave Uncle Sam · Bunker Buster · One of Us · Officer on Deck · I Am Become Death Questlines (updates) The Wayward Wayward Souls · Hunter for Hire · Strength in Numbers · The Elusive Crane Foundation Here to Stay · Trade Secrets · Invisible Ties · Duty Calls · Siding with Foundation · Division of Wealth · All That Glitters · Secrets Revealed Crater Raiders Strange Bedfellows · Cheating Death · Fun and Games · The Ol' Weston Shuffle  · Siding with Crater · From Russia With Lev · Buried Treasure · Secrets Revealed Fort ATLAS Welcome to the Neighborhood · Forging Trust · Mother of Invention · Field Testing · Disarming Discovery · Property Rights · Supplying Demands · Over and Out · The Best Defense · A Knight's Penance · Missing Persons · Out of the Blue · A Satisfied Conscience · The Catalyst Atlantic City All the World's a Stage · Opportunity Knocking · Sins of the Father · Tax Evasion · The Most Sensational Game · The Human Condition · Custodial Compulsions · Regent of the Dead Vault 63 An Unlikely Invitation · Into Lands Unknown · The Calm Before · Between The Lines · Housekeeping for Hire · Seeking Shelter · Oldest Trick in the Book · The Powerhouse of the Cell · Double-Crossed Wires · Gathering Clouds · The Eye of the Storm Ghoul Within Leap of Faith · A Fresh Pair of Genes Burning Springs Welcoming Committee · Might Makes Right · Insurrection · When the Rust Settles Side quests Order of Mysteries Into the Mystery · Initiate of Mysteries · Novice of Mysteries (Chasing Shadows · Forging a Legend · Prototypical Problems) · Seeker of Mysteries · The Mistress of Mystery Sheepsquatch Lying Lowe · Baa Baa Black Sheep · The Lowe-Down · Wolf in Sheep's Clothing Pioneer Scouts Bucket List · The Order of the Tadpole (Tadpole Archery Test · Tadpole Athletics Test · Tadpole Swimming Test) · Possum Junior Roboticist Tour Allies Beckett: Narrow Escape · An Eagle Flies Free · (Dirty Little Secrets · Exit Sage Left · Out of Key · Traitor's Demise · Supply and Demand · Spilling Blood · Pet Peeve · Shooting Star · Bot of Gold · Sibling Piracy · Needs of the Many · Eye for an Eye) · Thicker Than Water Sofia Daguerre: Crash Landing · The Woman Who Fell to Earth (One Small Step · In Case of Emergency · Bring Home the Beacon · The Universe Conspires · Hope Remains · Search and Destroy · Heavy Eyes · Patently False · Privacy Violation · Contractually Obfuscated · Boot Camp · Past Expiration · No Brainer · Calling Long Distance · Who Sat Down Beside Her · Lab Rat) · Mission Out-of-Control Blue Ridge Caravan Company Costa Business: Carver · Costa Business: Eugenie · Costa Business: Herschel · Costa Business: Kieran · Costa Business: Libby · Costa Business: Rudy · Costa Business: Vera Other An Organic Solution · Breaking Radio Silence · Bureau of Tourism · Casting Off · Cold Case · Falsely Accused · From Ashes to Fire · Grunt Hunt · Home Expansion · Miner Miracles · Mistaken Identity · Overseer's Mission · Personal Matters · Protocol Adonais · Responders Reborn · Safe for Work · Something Sentimental · Tentative Plans · That Sinking Feeling · The Motherlode · Tracking Unknowns · Union Dues · Unsolved: Best of Intentions · Unsolved: Death and Taxidermy · Unsolved: Picnic Panic · Unsolved: Tracking Terror · Waste Management · Wasted on Nukashine Refuge encounters Camera Shy · Chess Problem · Dog Ex Machina · Garbage Day · Honor Roll · Hotel Makeover · Impostor Syndrome · Letters to Home · Lover's Quarrel · Conversion Error · Mr. Makeover · No Surprises · Reading Material · Responder Recruitment · The Perfect Fussfungle · Toothache · Ultimate Showdown · Weapon of Choice