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