Here is the full list of all 49 Agents of Mayhem achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Use mission replay to replay and complete 3 missions.
Complete all Operations on Difficulty Level 7+.
Unlock and Complete all standard VR room training programs.
Enter a secret room, inside a secret room, inside a LEGION lair.
Complete 30 MAYHEM & Agent Contracts.
Collect all collectible Shards in game.
Complete 15 Connected Contracts.
Complete "Operation: Damocles."
Complete a LEGION lair for the first time in Seoul.
Complete a 360 in the air while in a vehicle.
Complete LEGION Alert Level by defeating the LEGION Captain.
Complete all agent personal missions and get all agents to level 20.
Fully upgrade all areas of the ARK.
Collect all agent vehicles.
Fully deck out Firing Squad in their signature outfits.
Fully deck out the Bombshells in their signature outfits.
Fully deck out Carnage a Trois in their signature outfits.
Fully deck out Franchise Force in their signature outfits.
Swap out an agent's weapon with a new look.
Reach level 40 on any agent
Complete "Operation: Madhouse."
Complete "Operation: Red Queen."
Complete "Operation: Machine Man."
Complete "Operation: Star Power."
Destroy a Gravity Dominator.
Complete the Moscow Global Offensive.
Enter a secret room inside a LEGION lair.
Unlock 5 Warp Points through open world gameplay.
Use Gremlin Tech for the first time.
Destroy a Golem in the open world.
Destroy a Dark Matter Fracking Station.
Build your first vehicle through blueprints.
Hit 10 jumps in the city.
Destroy a Hate Machine Emplacement.
Destroy a Ice Barrage Emplacement.
Complete "Operation: Heaven Sent."
Get 15 "All Perfect" hacks.
Take over each type of emplacement location.
Run over Legion 10 times.
Deploy your first agent to any LEGION region.
Equip an Upgrade Core to any agent.
Find and open a large loot chest.
Take over an Outpost from LEGION.
Destroy a Drop Pod Launcher Emplacement.
Call in an agent vehicle for the first time.
Jump agent vehicle 50 meters in one jump.
Equip your first gadget onto any agent.
Warp into the ARK for the first time.
Complete "Operation: Spinoff."