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