Full list of all 41 The Godfather II achievements worth 1,000 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox 360.
Eliminate Hyman Roth.
Eliminate all five rival families.
Crack all safes.
Collect all level 2 and 3 firearm upgrades.
Control all crime rings.
Control all extortable businesses.
Eliminate four rival families.
Eliminate three rival families.
Control five crime rings.
Control three crime rings.
Eliminate two rival families.
Kill Henry Mitchell.
Earn one of each favor.
Recruit a full family tree.
Kill 750 mobsters.
Promote one of your made men to Underboss.
Heist each bank once.
Unlock all safehouses.
Kill 500 mobsters.
Find a level 3 firearm upgrade.
Accept Tom Hagen as your Consigliere.
Complete all execution styles.
Kill 250 mobsters.
Eliminate 5 made men with the appropriate kill condition.
Kill 25 mobsters only using BlackHand attacks.
Kill 150 mobsters only using firearms.
Send your men to attack a venue from the Don's View.
Promote one of your made men to Capo.
Heist your first bank.
Eliminate a rival family by successfully bombing their compound.
Kill 100 mobsters.
Max out all guards at a venue.
Complete 10 execution styles.
Crack five safes.
Send your men to bomb a venue from the Don's View.
Control one crime ring.
Upgrade one of your made men's skills or weapons.
Kill 25 mobsters.
Find a level 2 firearm upgrade.
Recruit your first soldier.
Create a mobster using MobFace.