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