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