Here is the full list of all 50 Just Cause 2 achievements. It takes around 50-60 hours to unlock all of the achievements on Windows.
Drive all 104 vehicles.
Kill 5 enemies with the melee attack while they're suspended with the grappling hook.
Kill 30 enemies by mowing them down with vehicles.
Complete 10 challenges.
Open the parachute and then land on foot 300 meters above the starting height.
Stand on foot at the highest point of Panau.
Kill 30 enemies by using the grappling hook and making them fall to their death.
Kill 50 enemies using melee attacks.
Assassinate 25 colonels.
Hijack 50 enemy vehicles.
Kill 30 enemies while they're falling through the air.
Complete 1000 sabotages.
Collect 150 faction items.
Get 100 stunt driver points.
Bonus for completing the game on normal difficulty.
Reach 50% completion in the normal mode or mercenary mode.
Complete story mission 7.
Complete story mission 6.
Complete 49 faction missions.
Kill 5 enemies by dragging them behind a vehicle with the grappling hook.
Collect 1000 resource items.
Reach 100% complete in 100 locations.
Kill 20 enemies in 60 seconds.
Complete story mission 5.
Complete 9 stronghold takeovers.
Kill 750 enemies.
Complete 100 sabotages.
Discover 100 locations.
Complete story mission 4.
Kill 50 enemies in a row with inventory weapons without losing health.
Reach 100% complete in 15 locations.
Kill 50 enemies with headshots.
Drive 30 different vehicles.
Complete story mission 3.
Destroy 30 objects in 60 seconds.
Complete 3 stronghold takeovers.
Collect 100 resource items.
Travel 75 kilometers by land vehicle.
Complete story mission 2.
Complete story mission 1.
Cause chaos for the first time.
Bonus for completing the game on hard difficulty. Also gives you the bonus for normal difficulty.
Bonus for completing the game on extreme difficulty. Also gives you the bonus for hard and normal difficulties.
Complete 50 challenges.
Kill 30 enemies while they're suspended in the air with the grappling hook.
Kill 5 enemies by smashing them with an object tethered to your vehicle with the grappling hook.
Base jump 1000 meters.
Fly an airplane under 30 unique bridges in Panau.
Fly an airplane close to the ground for 30 seconds.
Reach 75% completion in the normal mode or mercenary mode.