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