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