Here is the full list of all 42 The Godfather II trophies - there are 28 bronze, 9 silver, 4 gold and 1 platinum.
Act like a mobster, think like a Don.
Crack all safes.
Eliminate Hyman Roth.
Earn one of each favor.
Collect all level 2 and level 3 firearm upgrades.
Eliminate all five rival families.
Control all crime rings.
Kill Henry Mitchell.
Control all extortable businesses.
Recruit a full family tree.
Promote one of your men to Underboss.
Kill 750 mobsters.
Eliminate four rival families.
Heist each bank once.
Unlock all safehouses.
Find a level 3 firearm upgrade.
Eliminate three rival families.
Kill 500 Mobsters.
Eliminate two rival families.
Control five crime rings.
Control three crime rings.
Accept Tom Hagen as your Consigliere.
Kill 250 mobsters.
Kill 150 mobsters only using firearms.
Eliminate 5 made men with the appropriate kill condition.
Complete all execution styles.
Kill 25 mobsters only using BlackHand attacks.
Promote one of your made men to Capo.
Eliminate a rival family by successfully bombing their compound.
Find a level 2 firearm upgrade.
Heist your first bank.
Crack five safes.
Kill 100 mobsters.
Max out all guards at a venue.
Control one crime ring.
Send your men to attack a venue from the Don's View.
Send your men to bomb a venue from the Don's View.
Upgrade one of your made men's skills or weapons.
Kill 25 mobsters.
Complete 10 execution styles.
Recruit your first soldier.
Create a mobster using MobFace.