Here is the full list of all 40 Fuse achievements worth 1,000 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox 360.
Kill 3 Leadfires, Leadfoots, or Leadshots using only your sidearm.
Complete all missions on Lethal.
Upgrade Jacob's entire skill tree.
Get Jacob to max level.
Upgrade Dalton's entire skill tree.
Get Dalton to max level.
Destroy all of the trucks at the bunker defense.
Upgrade Naya's entire skill tree.
Get Naya to max level.
Perform a stealth takedown on the Raven soldier at the urinal.
Kill 2500 enemies in Campaign and Echelon.
Get 5 Stars on all Echelon maps with 2+ players.
Pin 3 enemies within a 10 second period.
Upgrade Izzy's entire skill tree.
Get Izzy to max level.
Spend 100,000 Fuse Credits.
Get 5 Stars on a single Echelon Map with 2+ players.
Fully upgrade 1 perk in the Team Perks menu.
Stealth takedown 4 enemies at once in a four player co-op game.
Complete 12 waves on a single map with 2+ players.
Complete 6 waves on a single map with 2+ players.
Complete all missions co-op (2, 3, or 4p).
Complete all missions on normal difficulty.
Complete Grigori Station.
Crystallize and kill 3 enemies at once.
Collect every piece of Intel in the game.
Save Luther from the Order of Grigori.
Eviscerate 3 enemies at once using the MagShield.
Activate Fusion for the first time.
Complete Raven Facility.
Defeat Meilin Mao.
Purchase a single Team Perk.
Defeat Ivan Sovlenko.
Complete a single mission in co-op (2, 3 or 4p).
Complete Hyperion Base.
Perform a stealth takedown on 2 enemies at once in a co-op game.
Create a chain reaction that takes out 3 enemies at once.
Retrieve your Xenotech Weapons.
Fully upgrade 16 perks in the Team Perks menu.
Unlock 16 perks.