Here is the full list of all 50 Just Cause 2 achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Complete 49 faction missions.
Reach 75% completion in the normal mode or mercenary mode.
Complete 50 challenges.
Complete 10 challenges.
Bonus for completing the game on extreme difficulty. Also gives you the bonus for hard and normal difficulties.
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.
Drive all 104 vehicles.
Complete story mission 5.
Complete story mission 4.
Reach 50% completion in the normal mode or mercenary mode.
Fly an airplane under 30 unique bridges in Panau.
Fly an airplane close to the ground for 30 seconds.
Collect 150 faction items.
Collect 1000 resource items.
Assassinate 25 colonels.
Complete 9 stronghold takeovers.
Reach 100% complete in 100 locations.
Kill 5 enemies by smashing them with an object tethered to your vehicle with the grappling hook.
Kill 20 enemies in 60 seconds.
Complete 1000 sabotages.
Kill 30 enemies by mowing them down with vehicles.
Complete story mission 3.
Discover 100 locations.
Base jump 1000 meters.
Hijack 50 enemy vehicles.
Get 100 stunt driver points.
Travel 75 kilometers by land vehicle.
Kill 50 enemies in a row with inventory weapons without losing health.
Kill 30 enemies while they're falling through the air.
Open the parachute and then land on foot 300 meters above the starting height.
Kill 30 enemies while they're suspended in the air with the grappling hook.
Stand on foot at the highest point of Panau.
Kill 30 enemies by using the grappling hook and making them fall to their death.
Kill 50 enemies using melee attacks.
Kill 750 enemies.
Kill 5 enemies by dragging them behind a vehicle with the grappling hook.
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.
Collect 100 resource items.
Destroy 30 objects in 60 seconds.
Kill 50 enemies with headshots.
Drive 30 different vehicles.
Complete story mission 2.
Complete story mission 1.
Cause chaos for the first time.