To get each of the following achievements, load up your save game and select Corleone Challenges. These achievements are unlockable without the Corleone Challenges marketplace DLC.

Achievement	Task
CC Collecting Dues ( 20 points )	Corleone Challenges: Extort 20 merchants and/or racket bosses before time runs out
CC Batter Up ( 20 points )	Corleone Challenges: Kill 30 mobsters in less than 15 minutes using only melee weapons
CC Executions ( 10 points )	Corleone Challenges: Perform 10 unique executions before time runs out
CC Earn Money ( 10 points )	Corleone Challenges: Earn $75,000 before time runs out
CC Hijack ( 20 points )	Hijack 5 racket trucks before time runs out
CC Hits - No Innocents ( 20 points )	Corleone Challenges: Kill 100 mobsters before time runs out
CC Road Rage ( 10 points )	Corleone Challenges: Kill 25 mobsters using your car before time runs out
CC Safe Cracker ( 10 points )	Corleone Challenges: Crack 10 safes before time runs out
CC Takedown ( 25 points )	Corleone Challenges: Takedown a warehouse in less than 5 minutes
CC Tattaglia Hit ( 20 points )	Corleone Challenges: Kill 50 Tattaglias in less than 20 minutes