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