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