Sniper Elite 4 (PC)

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Easy "Dirty Tactics" achievement

To get the "Dirty Tactics" achievement, you must place an explosive on a dead body (anything except Stick grenades work). When an enemy comes to investigate, it will explode and you will get the achievement. Either carry the dead body and drop it where enemies can see it, or throw some stones to lure them.

Easy "The Nutcracker - Sweet!" achievement

Shoot an enemy in the foot with the Welrod pistol (or another weak pistol/rifle). Sometimes this will make them fall down. Then, move close to them, take out the sniper rifle, and shoot between their legs to get "The Nutcracker - Sweet!" achievement. One area this can easily be done is in Mission 8: Allagra Fortress. The enemies in this mission have more health and do not die so quickly by your pistol shots, giving you more attempts to incapacitate them. You can do this with the first two enemies in the mission. After incapacitating the enemy, you may want to create a manual save game -- just in case the testicle shot goes wrong you can reload and try again.

Easy "The Path Of Most Resistance" achievement

At the very end of Mission 8: Allagra Fortress, you have to destroy a plane. Instead of shooting the engine, wait for the plane to take off and for the enemy to say "Open the missile hatch!", then shoot the missile it is carrying (under the plane). The missile will explode and destroy the plane, resulting in a cutscene and the achievement unlocking. Note: You must use a bolt-action sniper rifle. All sniper rifles except the Gewehr 43 and M1 are bolt-action. The M1903 Springfield that is unlocked from the beginning is also bolt-action.

Various Achievements - "Target Fuhrer" bonus content

Complete the indicated task to unlock the achievement.

AchievementHow to unlock
Base DesiresComplete all Optional Objectives and destroy the base.
Deja View to a KillKill Hitler.
Down PeriscopeKill Hitler with the submarine.
Final ReckoningComplete the Mission.
Hot PotKill Hitler with the casserole.
MinesweeperBlow up Hitler on VIP boat with a sea mine.
STRIKE!!Kill Hitler with a torpedo rack.
Silent but ViolentKill Hitler and exfiltrate without being detected.
Target Fuhrer: Albert HallKill the Dictator with a testicle shot.
Target Fuhrer0 Days Without Incident: Kill Hitler with any explosive item/trap.
The Eagle Has LandedCrush Hitler with the Eagle at the ceremony.
Total WarComplete all challenges.

Various Steam Achievements

Successfully complete the indicated task to unlock the corresponding achievement.

AchievementHow to unlock
A Bird in the Hand...Shoot all Stone eagles.
A Most Singular ExpertMaster a single weapon.
Ambush KingKill 100 enemies with traps.
Are You Insane?Complete the entire main campaign on Authentic difficulty.
Challenge AcceptedComplete all challenges in a single mission.
Channel ChangerTake control of the enemy held radio and capture it with just seconds remaining.
Competitive NatureComplete at least one match in each mode.
Compounding Your SuccessComplete Overwatch 1.
Demolition FanSatchel Charge 25 manned vehicles/pillboxes/pantherturms.
Dirty TacticsKill an enemy via a booby trap.
DogfaceReach character rank 5.
Everything by HalvesComplete 50% of all Secondary Objectives in the Main Campaign.
Fire and BrimstoneKill 5 enemies with a single artillery strike.
Following OrdersComplete all Secondary Objectives in the Main Campaign.
Gotta Cap 'em AllKill one of each infantry type.
Greatest HitsFind all Sniper Reports.
I See You!Fully Target Focus 100 times.
JarheadReach character rank 25.
Keeping Your DistanceTotal kill distance of 100 Kilometers.
Master-At-ArmsFully master a rifle, secondary weapon and pistol.
Mission PossibleComplete the entire main campaign on Cadet difficulty.
Mother Knows BestComplete all Mother Hen missions in the main game.
My Rifle is My Best FriendComplete a main campaign mission with rifle kills only.
Never, never, never give upComplete Mission 6.
No compromise is possibleComplete Mission 3.
On Yer Head, SonKill 3 enemies with environmental drop kills.
Plans are nothing, planning is everythingComplete Mission 7.
Rockin' the Rifle500 Kills with a Rifle.
Set Europe ablaze!Complete Mission 4.
Silent But DeadlyKill 100 enemies with suppressed ammo.
Sniper, InterruptedKill 5 Snipers before they see you.
Still Ain't Got Time to BleedComplete a single player mission without using a Medikit or Bandage.
Success is not finalComplete Mission 8.
Survival of the FittestComplete all waves in a survival session.
The Best of the Best of the BestComplete the entire main campaign on Authentic difficulty with no manual saves.
The CollectorCollect all Last Letters, Letters From Home, and Letters To Home in the main game.
The Masterful MarksmanComplete the entire main campaign on Marksman difficulty.
The Nutcracker - Sweet!Incapacitate an enemy, then shoot them in the testicles.
The Organ GrinderGet at least one killshot on every organ.
The Path of Most ResistanceDestroy the plane using a Bolt-Action Rifle.
The Pistol Pro100 Kills with a Pistol.
The Real DealComplete the entire main campaign on Sniper Elite difficulty.
The Secondary Specialist250 Kills with a Secondary Weapon.
The end of the beginningComplete Mission 1.
Train, Set and MatchComplete Overwatch 2.
Variety is the Spice of DeathGet a kill with every weapon.
VeteranReach character rank 50.
We shall fight on the beachesComplete Mission 2.
We shall not fail or falterComplete Mission 5.
Weaver's WarriorComplete all OSS Secondary Objectives in the Main Campaign.