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