Here is the full list of all 46 Enemy Front trophies - there are 34 bronze, 8 silver, 3 gold and 1 platinum.
Collect all trophies
Finish the game on Casual difficulty level
Finish the game on Medium difficulty level
Finish the game on Expert difficulty level
Paint all Polish resistance symbols on levels that happen in Warsaw
Destroy all vehicles inside the workshop in 'Final Victory' mission
Collect all secrets
Kill all enemies inside the V2 factory
Collect all rocket parts in 'Fire from the Sky' mission
Rescue Dietrich from POW Camp without raising any alarm
Rescue prisoners from POW camp without raising any alarm
Kill 50 Germans and destroy all armored vehicle in 'Home Army Victorious' mission
Save Home Army soldier in the hospital
Kill 20 enemies using explosive environment objects (Singleplayer)
Collect 30 secrets
Destroy all enemy planes using anti aircraft cannon in 'Fortress at Oscarborg' mission
Destroy the cable car in 'Winter in Vemork' mission
Kill all snipers on top of PAST with a sniper rifle without reloading it
Use commanding officer inside PAST as a human shield
Collect all Blyskawica radio station parts in 'PAST Assault' mission
Kill 3 SDKFZ gunners without destroying the vehicle
Set and detonate explosives on the enemy truck in 'Officer hunt in the Loue Valley' mission
Destroy all enemy vehicles inside the ruined castle in 'Sabotage in the Loue Valley' mission
Collect 15 secrets
Kill 25 enemies using mounted HMG (Singleplayer)
Defend back of the church without using HMG in 'Siege of St. Cross' mission
Help all resistance members in 'French Resistance' mission
Collect 5 secrets
Throw back 3 enemy grenades (Singleplayer)
Rescue the priest with a single shot in 'First Victory' mission
Kill an officer and blow up the armory with one shot in 'First Victory' mission
Get into the prison without raising alarm in 'First Victory' mission
Kill two enemies with one bullet (Singleplayer)
Kill 10 enemies during 'Loud Sound'
Lure 5 enemies by throwing stones
Take enemy officer/soldier as a human shield then kill 3 enemies
Become the most valuable player in 10 Team Deathmatches
Obtain First Sergeant rank
Play 50 Multiplayer matches
Win 5 matches in Radio Transmission mode
Obtain all medals in Deathmatch, Team Deathmatch and Radio Transmission modes
Win a match in every Multiplayer mode
Play all multiplayer modes
Perform 100 Headshots in Multiplayer mode
Win a Deathmatch round without dying
Play any Multiplayer match