GTA 4 Final Missions (Ending #1) | DEAL ENDING

DEAL ENDING missions : If The Price Is Right, Mr. & Mrs Bellic and A Revenger's Tragedy.
One Last Thing... : Pegorino explains that he needs Niko to partake in a Heroin deal that is his last chance to get on The Commission; but since the deal involves the old rival Dimitri Rascalov, Niko is left unable to decide. Now the player must decide to either exact Revenge or strike a Deal with/against Rascalov after persuasion from both Roman and Kate McReary, both of whom suggest Niko does the opposite to what either says and after both calls, make the final decision.

If The Price Is Right : Dimitri calls Niko to say that he has killed the buyers' representatives, and will keep the heroin for himself. Unfortunately, Niko and Phil are already in the buyers' compound. Believing they will not be able to escape the territory of the newly betrayed buyers without a fight, the pair decide that they will steal the money. A massive gunfight ensues in the buyers' warehouse, followed by a chase when one of the buyers escapes with the money. They kill the dealer then take the cash from him; Niko then drives Phil to his hideout in Tudor and takes a cut of the cash. After this Niko cuts his ties with Pegorino.
Kate McReary becomes upset with Niko for making a deal with Dimitri Rascalov, and refuses to go to the wedding. Roman, however, is happy that Niko did the deal and put his hatred of Dimitri aside. Roman reminds Niko to wear a suit and be at the church in Suffolk the following day.

Mr & Mrs Bellic : The next day, Roman calls Niko and asks him where he is at since he is getting married and it cannot happen without his best man. Niko assures him that his is on his way. Later, Niko arrives at the church and witnesses Roman and Mallorie get married. Outside, the crowd cheer as Roman and Mallorie exit the church. During the celebrations, a bald man walks up behind Niko. He draws a pistol, saying "A gift from Dimitri Rascalov". Niko wrestles with him and, after two stray shots are fired, succeeds in forcing the pistol back and shooting the assassin in the head, killing him instantly. Roman, however, was accidentally shot dead during the struggle.
Mallorie breaks down into tears. Furious at his cousin's death, Niko repeatedly shoots the assassin's body until the gun runs out of ammunition, and then starts kicking it. Little Jacob calms him down and promises Niko that he will track down Dimitri and call him when he does, before telling Niko to go home.

A Revenger's Tragedy : Chase and kill Dimitri (who kills Jimmy Pegorino before dying).