Claude is put at gunpoint by a Cartel member, but quickly escapes by punching him and taking the pistol he dropped. Claude swiftly takes down the remaining Cartel members before leaving the mansion, only to spot a helicopter hovering past him which has Catalina and Maria aboard. Claude follows the helicopter all the way to the base of Cochrane Dam, killing groups of heavily-armed Cartel members that gets in his way.
With Claude closing in on the helicopter, Catalina drops off Maria and a couple of her guards at the dam’s loading bay before re-entering her helicopter. Catalina's chopper fires missiles at the ground while Claude gets to Maria and kills the remaining Cartel men. Claude picks up a nearby Rocket Launcher to shoot down Catalina's chopper. After successfully hitting the helicopter with a rocket, it spins out of control before crashing against the dam, killing Catalina. Afterwards, Claude and Maria walk together as they cross over to the other side of the dam.
While the credits are rolling on the screen Maria can be heard talking right before a mysterious gunshot, after which, she remains silent and is no longer heard. The news also reports the crime scene with witness Clive Denver.
The gangsters notice Claude and stop their conversation. Claude hands them the ransom money.
After Claude gives one of the Cartel gangsters the money, he is frisked and has his weapons taken away.
After the frisk, one of the Cartel gangsters opens the gate and signals for Claude to follow him inside.
Claude is taken to a front-yard where Catalina is waiting for him with several bodyguards and Maria.
Upon seeing Claude, Catalina questions whether Claude came to rescue Maria or if he wants to be Catalina's boyfriend again.
Catalina claims that shooting Claude was a pleasure and that she only dated him for her own gain.
After saying that, Catalina orders the Cartel gangster carrying the briefcase to give it to her.
Catalina opens the briefcase she is given to see all money that she had requested there.
Catalina comments on Claude having all the money as him "being a busy boy", but says that he didn't learn from their
last friendly encounter when she shot him and left him for dead.
Catalina tells the Cartel gangster to kill Claude before walking off with Maria.
After a few moments, Claude punches the gangster and knocks him out.
Claude has to fight for his life; to do so he must take the gun of the gangster he knocked out.
After Claude knocks the gangster out all the guards around the Villa start firing at Claude. He runs for cover at a nearby garage where he finds some
body armor and a
Cartel Cruiser.
Claude drives towards the gate after stealing the Cartel Cruiser for extra cover.
Shortly after exiting the villa compound, Claude sees Catalina fly by the villa in a white
helicopter.
Claude has to follow the helicopter to find Catalina.
Claude following the white helicopter.
After driving further, Claude comes across a Colombian Cartel checkpoint blocking the entrance to the dam.
Claude taking care of the Cartel gangsters at the checkpoint.
After taking the
weapons of the fallen gangsters, Claude proceeds further to the dam.
Catalina's white helicopter stationed on a small building at the end of the dam.
After continuing to walk through the dam, Claude sees another Colombian Cartel checkpoint set up.
After picking the rifle up, Claude prepares to use it to clear out the gangsters guarding the checkpoint.
Claude, about to take out the first Cartel gangster.
Claude, about to take out the final Cartel gangster.
Colombian Cartel members protecting Maria from escaping.
As Claude approaches, Catalina decides to get into the helicopter and try to kill him from it.
Claude sees Catalina's helicopter approaching him.
Suddenly, the helicopter starts dropping explosives below.
After destroying two
Flatbed's that were going to attack him, Claude proceeds to massacre any Cartel gangsters in his way.
Claude killing the two Cartel gangsters protecting Maria.
Claude and Maria reunited.
On the rooftop is a
rocket launcher, which Claude decides to pick up and use it to destroy Catalina's helicopter.
Claude firing the first shot at Catalina's helicopter.
After the first shot had made the helicopter lose balance, Claude fires the second shot to destroy the helicopter.
The second shot spirals the helicopter out of control.
Shortly after the second shot, the helicopter starts breaking apart and exploding.
After a few moments the helicopter plummets into the chemical-filled water of
Liberty City, killing Catalina and any other Cartel gangsters aboard.
A news report is seen on the massive gunfight between Claude and the Colombian Cartel.
The news report features a report from a witness who claims to have seen a single gunman (Claude) leaving the warzone with a dark-haired woman (Maria).
As the news report is relayed, Claude and Maria climb the stairs to the top of the dam.
Claude and Maria admiring the view after climbing at the top of the dam.
The news report says that the bodies of the dead were recognized by the police to be members of the Colombian Cartel.
The body count is said to already be over twenty, with new bodies still being discovered.
As the screen fades to black, Maria complains to Claude about her hair and nails being ruined, before a gunshot is heard, signaling the beginning of the end credits...