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