Finale

The story features two possible endings depending on the choice made by the player at this point in the game: to strike a Deal with Dimitri or exact Revenge on him. In both endings Niko sees Pegorino as an enemy for allying so closely with Dimitri, and both antagonists are killed. The major difference in each ending is that either Roman Bellic in Deal or Kate McReary in Revenge dies.

If the player chooses to go through with the Deal, Niko meets Phil Bell to retrieve the money once Dimitri delivers the heroin to another location. However Dimitri takes the heroin for himself instead. Niko and Phil are forced to fight to escape, but retrieve the drug money regardless. Kate McReary, who was against making the deal, is disappointed with Niko and refuses to attend Roman and Mallorie's wedding. At the wedding, an assassin sent by Dimitri kills Roman with a stray bullet as Niko disarms and kills him. A devastated and vengeful Niko -- with Little Jacob's help -- follows some henchmen to where Dimitri and Pegorino are hiding. There he witnesses Dimitri betray and kill Pegorino out of greed before escaping in a chopper. Niko chases Dimitri to Happiness Island, where Niko kills Dimitri in the shadow of the Statue of Happiness. The story ends with Niko concerned for the well-being of his soul. After the end credits, Mallorie reveals to Niko in a phone call that she is pregnant with Roman's child, and later Kate calls Niko, saying that she will be there for him.

If the player chooses to exact Revenge, Niko ambushes Dimitri on the cargo ship Platypus -- the same cargo ship that brought Bellic into Liberty City in the game's intro -- and executes him. In the aftermath, Roman and Mallorie's wedding takes place and Jimmy Pegorino, furious after Niko's betrayal, commits a drive-by shooting outside the church that targets Bellic, but ends up killing Kate McReary. However, now that Pegorino has lost his ally Dimitri and angered both Niko (and thereby his many friends) and the five mafia families, the entire underworld of Liberty City wants him dead and he goes into hiding. With Little Jacob's help and Roman's support, Niko follows some henchmen to Pegorino's location where Niko attempts to kill him, but Pegorino escapes. Niko chases and executes Pegorino in the shadow of the Statue of Happiness. After the end credits, Roman reveals to Niko in a phone call that he and Mallorie are expecting a child and if it is a girl, they will name her Kate in memory of Niko's girlfriend. Packie later calls him and states that he will stay in Liberty City to take care of his mother, after mourning for the loss of his sister.

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