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