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