Here is the full list of all 50 Just Cause 2 achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Reach 75% completion in the normal mode or mercenary mode.
Kill 5 enemies by smashing them with an object tethered to your vehicle with the grappling hook.
Complete 50 challenges.
Drive all 104 vehicles.
Fly an airplane under 30 unique bridges in Panau.
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.
Base jump 1000 meters.
Assassinate 25 colonels.
Collect 150 faction items.
Complete 49 faction missions.
Collect 1000 resource items.
Kill 50 enemies in a row with inventory weapons without losing health.
Kill 5 enemies with the melee attack while they're suspended with the grappling hook.
Reach 100% complete in 100 locations.
Reach 50% completion in the normal mode or mercenary mode.
Complete 9 stronghold takeovers.
Kill 50 enemies using melee attacks.
Complete 1000 sabotages.
Fly an airplane close to the ground for 30 seconds.
Hijack 50 enemy vehicles.
Kill 30 enemies while they're suspended in the air with the grappling hook.
Kill 5 enemies by dragging them behind a vehicle with the grappling hook.
Get 100 stunt driver points.
Kill 30 enemies by mowing them down with vehicles.
Kill 30 enemies while they're falling through the air.
Kill 20 enemies in 60 seconds.
Complete story mission 7.
Bonus for completing the game on normal difficulty.
Complete story mission 6.
Complete 10 challenges.
Stand on foot at the highest point of Panau.
Discover 100 locations.
Kill 50 enemies with headshots.
Open the parachute and then land on foot 300 meters above the starting height.
Kill 30 enemies by using the grappling hook and making them fall to their death.
Complete story mission 5.
Kill 750 enemies.
Complete 3 stronghold takeovers.
Travel 75 kilometers by land vehicle.
Complete story mission 4.
Reach 100% complete in 15 locations.
Complete 100 sabotages.
Complete story mission 3.
Collect 100 resource items.
Drive 30 different vehicles.
Complete story mission 2.
Complete story mission 1.
Destroy 30 objects in 60 seconds.
Cause chaos for the first time.