Unlock the following medals by performing the corresponding tasks:

MEDAL - HOW TO UNLOCK
Combat Basic - Kill 100 enemies
Combat Master - Kill 500 enemies
Combat Senior - Kill 250 enemies
Endurance - Complete any mission without suffering critical injuries
Green Survivor - Complete any mission on Green difficulty without dying
Grenade Combat - Kill 25 enemies with grenades
Hero Survivor - Complete any mission on Hero difficulty without dying
Heroism - Complete Campaign Mode on Hero difficulty
LMG Combat - Kill 150 enemies with light machineguns
Machine Gun Combat - Kill 50 enemies with the MG42
Marksmanship - Complete any mission with 75% shooting accuracy
Participant - Complete Campaign Mode on Green difficulty
Pistol Combat - Kill 50 enemies with a pistol
Rifle Combat - Kill 50 enemies with a rifle
Rocket Combat - Kill 25 enemies with a rocket launcher
Sharpshooter - Kill 100 enemies via headshot
Shotgun Combat - Kill 50 enemies with a shotgun
SMG Combat - Kill 250 enemies with a sub-machinegun
Sniper Combat - Kill 50 enemies with a sniper rifle
Veteran - Complete Campaign Mode on Veteran difficulty
Veteran Survivor - Complete any mission on Veteran difficulty without dying

Unlock the following Map awards by performing the corresponding tasks:

MAP AWARD - HOW TO UNLOCK
Base Demolition -  Stop Hitler's pet project.
Beach Attack -  Land on the beach with the 5th Rangers, and push through the Nazi defenses.
Destroy the Guns -  Destroy five Anti-Air gun batteries to protect Allied bombers.
Destroy Train -  Fight through the fields to the train station.
Monastery Assault -  A key figure has set up a base of operation in a remote monastery. Crack the defenses and get whatever information you can.
Sink U-boats -  Destroy three U-boats in the port area.
Through the Sewers -  The Germans have holed up underground. Take them out while staying safe from Allied bombardment.