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