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