Here is the full list of all 51 Spec Ops: The Line trophies - there are 42 bronze, 5 silver, 3 gold and 1 platinum.
Recover 12 Intel Items.
Live and let die.
Complete game on "Suicide Mission" difficulty.
Complete game on "Combat Op" difficulty.
Complete game on "Walk on the Beach" difficulty.
Carry on, soldier.
The end of the line.
Kill an oryx. (campaign only)
Choose restraint.
Kill 75 enemies with any shotgun. (campaign only)
Kill 350 enemies with any rifle. (campaign only)
Get out of here!
Blow up 10 explosive objects, killing at least one enemy each time. (campaign only)
Kill an Edged Weapon Expert while he is up to 5 meters away. (campaign only)
Kill 50 enemies with grenades. (campaign only)
Kill 250 enemies with headshots. (campaign only)
Stand united.
Kill 50 enemies with any sniper rifle. (campaign only)
Kick an enemy by vaulting over a cover. (campaign only)
Show mercy.
Kill 150 enemies with any heavy weapon. (campaign only)
Kill 50 enemies using only the Attack Command. (campaign only)
Hit 10 enemies with your melee attack. (campaign only)
Follow your orders.
Play it smart.
Kill an enemy by tagging him with a sticky grenade. (campaign only)
Stun an enemy by dumping sand on their head. (campaign only)
Kill 3 enemies with a single grenade. (campaign only)
Face the horrors of war.
Kill 100 enemies with any pistol or SMG. (campaign only)
Engineer an exit strategy.
Kill 5 enemies using blind fire. (campaign only)
Kill an enemy just as they are throwing a grenade. (campaign only)
We have contact.
Look out below.
Sprint into cover 10 times while under fire. (campaign only)
Recover one Intel Item.
What's lost is found.
Unlock all Trophies.
Play it loose.
Buck the chain of command.
Save a bullet.
Choose vengeance.
You are relieved.
Live and let live.
Complete game on "FUBAR" difficulty.
Kill 4 enemies with a shotgun in 10 seconds or less. (campaign only)
Kill 10 enemies while they use zip lines or are rappelling. (campaign only)
Complete three chapters in a row without being killed or reloading a checkpoint.
Complete any chapter with 60%+ accuracy without dying or reloading a checkpoint.
Recover all Intel Items.