Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Ack Ack	Protect your tanks by shooting down all planes in Operation Cobra.
Chain Smoker	Disable 50 enemies using smoke grenades.
Champagne and Caviar	Unknown.
Death Factory	Unknown.
Defender	Protect the convoy by shooting down all the planes in The Rhine.
Distinguished Service	Complete the game on Veteran difficulty.
Flyboy	Protect the bombers by personally shooting down 12 enemy planes.
Fog of War	Sneak through the Dragon's Teeth undetected in Death Factory.
Friend in Need	Request Zussman to toss you First Aid Kits 30 times.
Gasoline Cowboy	Rescue your allies with the Sherman while keeping your armor above 80%.
Human Cost	Unknown.
I See Movement	Request Pierson to spot enemies 25 times.
I've got you!	Drag 10 allies to safety.
Infiltrated	Reach the sniper perch without being detected in Ambush.
Last Stop	Unknown.
Long Way from Texas	Unknown.
Marksman	Cover Zussman from the church without missing a shot in Stronghold.
No Sacrifice Too Great	Unknown.
No Sanctuary	Unknown.
One of the Lucky Few	Breach the seawall in under two minutes without taking MG fire.
Our Men	Unknown.
Pieces of History	Collect all 33 mementos.
Potato Masher	Save 5 allies by throwing away a live enemy grenade.
Praise and Pass	Request Turner to toss you ammo 20 times.
Quarter Given	Get 6 groups of enemies to surrender.
Rescuer	Save 8 allies locked in struggle.
School of Hard Knocks	Request Stiles to toss you grenades 15 times.
Silent Night	Sneak through the courtyard undetected in Liberation.
Slow and Steady	Spend 3 minutes using Focus in the campaign.
Sunday Driver	Complete the driving portion of S.O.E. without hitting any obstacles.
Suppressive Fire!	Successfully escort the pole charge engineer to the pillbox in Hill 493.
The Paddle	Unknown.
To the End	Complete the campaign.
Who needs a pendant?	Request Aiello to toss you signal smoke and call in mortar strikes 10 times.
Worst Christmas Ever	Unknown.