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