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