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