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