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