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