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