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