Here is the full list of all 35 Call of Duty: WWII achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Complete the game on Veteran difficulty.
Complete the campaign.
Protect the convoy by shooting down all the planes in The Rhine.
Collect all 33 mementos.
Complete Ambush.
Reach the sniper perch without being detected in Ambush.
Complete Battle of the Bulge.
Drag 10 allies to safety.
Save 8 allies locked in struggle.
Get 6 groups of enemies to surrender.
Protect the bombers by personally shooting down 12 enemy planes.
Complete Hill 493.
Successfully escort the pole charge engineer to the pillbox in Hill 493.
Complete Death Factory.
Request Turner to toss you ammo 20 times.
Sneak through the Dragon's Teeth undetected in Death Factory.
Complete Collateral Damage.
Request Zussman to toss you First Aid Kits 30 times.
Rescue your allies with the Sherman while keeping your armor above 80%.
Complete Liberation
Sneak through the courtyard undetected in Liberation.
Complete S.O.E.
Complete the driving portion of S.O.E. without hitting any obstacles.
Disable 50 enemies using smoke grenades.
Complete Stronghold.
Request Pierson to spot enemies 25 times.
Request Stiles to toss you grenades 15 times
Spend 3 minutes using Focus in the campaign.
Cover Zussman from the church without missing a shot in Stronghold.
Request Aiello to toss you signal smoke and call in mortar strikes 10 times
Complete Operation Cobra
Protect your tanks by shooting down all planes in Operation Cobra.
Complete D-Day.
Save 5 allies by throwing away a live enemy grenade.
Breach the seawall in under two minutes without taking MG fire.