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