Full list of all 77 Sniper Elite 3 achievements. It takes around 60-80 hours to unlock all of the achievements in the base game on Windows.
The base game contains 51 achievements, and there are 6 DLC packs containing 26 achievements.
Kill 10 enemies with flint-triggered detonations
Play 10 competitive multiplayer matches
Get to the informant without being spotted (Mission 4)
Get a kill with each offensive item
Hide a body in each of the wells in Gaberoun (Mission 2)
Find all the Sniper nests
Destroy all 3 bomb dumps at the same time (Mission 7)
Clear the mountain pass without alerting the enemy (Mission 1)
Complete Mission 8
Complete the game on Cadet difficulty
Complete the game on Marksman difficulty
Throw an enemy off one of the bridges (Mission 8)
Complete Mission 7
Get 20 chain reaction explosive kills
Complete Mission 6
Complete Mission 5
Relocate 100 times
Make the target officer's death look like an accident (Mission 5)
Kill 10 snipers before they see/shoot you
Kill 20 enemies by shooting explosives
Attain a rank of Sergeant (level 11)
Get 30 kills from sniper nests
Complete Mission 4
Own Sniper Elite, Sniper Elite V2 and Sniper Elite 3
Create and save 4 loadouts
Customize 1 rifle
Complete Mission 3
Complete a mission after losing over 500 units of health
Find and kill the visiting General (Mission 3)
Tag 100 enemies or vehicles
Complete Mission 2
Distract 20 enemies with flint or rocks
Complete Mission 1
Get a testicle-shot from over 100m away
Complete the campaign in co-op
Complete the game on Sniper Elite difficulty
Complete the game on Authentic difficulty
Find half of the war diaries
Find all the war diaries
Find all the collectible cards
Complete all the long shots
Complete all the optional objectives
Complete 100% of the campaign on any difficulty
Play 1 mission in each mode (campaign, challenges, competitive multiplayer)
Incapacitate 2 vehicles in Kasserine Pass within 5 seconds (Mission 6)
Attain a rank of Second Lieutenant (level 31)
Complete a campaign mission without being seen (excluding Tobruk)
Snipe enemies over a cumulative distance of a double marathon
Hold breath for one hour
Complete all the challenge missions
Earn 1 of every ribbon in competitive multiplayer
Kill the officer at the meeting with a testicle shot
Kill the target with a grenade
Kill the target in 7 different ways
Kill the target by shooting nearby explosive barrels
Crush the target with a bell
Shoot the target in his car
Kill the target with a chain reaction
Kill the target in the vehicle by shooting its weakspot
Shoot and kill the target
Observe the target and correctly choose to leave or kill
Complete 'In Shadows'
Complete the mission without using any healing items
Get to the command tent unseen and without killing
Destroy all the Teufelsfeuer shipments in the truck depot.
Complete 'Belly of the beast'.
Hit all the targets on the shooting range.
Complete 'Confrontation'.
Spot and destroy 4 enemy traps without triggering them.
Kill the Teufelsfeuer soldiers in the coliseum.
Eliminate a sniper with a stealth takedown.
Snipe the soldier in the tower far, far away.
Blow up the soldier in the distant tower using heavy artillery.
Take out two of the AA gun crews with special explosive events.
Find and set up the MG42.
Find and shoot the 10 hidden explosives (Shooting Range).
Earn Gold on all ranges (Shooting Range).