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