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