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