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