Here is the full list of all 18 Brotherhood United (EU) trophies - there are 8 silver, 9 gold and 1 platinum.
Save 15 Bros
Rapid fire your good old gun
Kill 100 enemies
Detonate 6 mines without taking damage
Throw 12 grenades
Save 5 Bros
Reach the end of the first mission
Throw 3 grenades
Kill 10 enemies
Detonate 1 mine without taking damage
Finish the tutorial
Unlock all other trophies
Save 35 Bros
Detonate 12 mines without taking damage
Get 3 stars on any mission
Pass through a mission without using grenades
Throw 32 grenades
Kill 350 enemies