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