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