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.
Kill 50 enemies in a row with inventory weapons without losing health.
Reach 75% completion in the normal mode or mercenary mode.
Drive all 104 vehicles.
Complete 50 challenges.
Collect 150 faction items.
Complete 10 challenges.
Get 100 stunt driver points.
Complete 49 faction missions.
Kill 20 enemies in 60 seconds.
Kill 5 enemies by smashing them with an object tethered to your vehicle with the grappling hook.
Reach 50% completion in the normal mode or mercenary mode.
Assassinate 25 colonels.
Collect 1000 resource items.
Hijack 50 enemy vehicles.
Kill 5 enemies by dragging them behind a vehicle with the grappling hook.
Reach 100% complete in 100 locations.
Complete 9 stronghold takeovers.
Complete 1000 sabotages.
Fly an airplane under 30 unique bridges in Panau.
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 7.
Complete story mission 6.
Discover 100 locations.
Travel 75 kilometers by land vehicle.
Base jump 1000 meters.
Complete story mission 5.
Kill 30 enemies while they're suspended in the air with the grappling hook.
Fly an airplane close to the ground for 30 seconds.
Kill 30 enemies while they're falling through the air.
Kill 50 enemies using melee attacks.
Kill 750 enemies.
Complete story mission 4.
Kill 30 enemies by using the grappling hook and making them fall to their death.
Complete 100 sabotages.
Kill 5 enemies with the melee attack while they're suspended with the grappling hook.
Complete 3 stronghold takeovers.
Reach 100% complete in 15 locations.
Complete story mission 3.
Collect 100 resource items.
Drive 30 different vehicles.
Kill 50 enemies with headshots.
Stand on foot at the highest point of Panau.
Open the parachute and then land on foot 300 meters above the starting height.
Complete story mission 2.
Complete story mission 1.
Destroy 30 objects in 60 seconds.
Cause chaos for the first time.