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