Playable

A veteran of the Balkan wars who arrives in Liberty City on his cousin's promise of a mansion and finds a cab office and a debt. He stays because the man who sold out his unit is somewhere in the city.
All 90 missions · 2 as giver
GTA IV
83of 90
Mission 83 of 90Story mission
Gravelli's last job, and the contact's: a deal between the Russians and the Ancelottis is being run out of a guarded compound, and the vans it depends on are to be destroyed rather than taken.
The way in is not the gate, and finding it is most of the mission.
The way in is the fence with the plates on the right-hand side. From there a ladder runs up the building beside it, and the wall carries across to the next building and onto the roof.
There is a sniper up here to deal with first, and he leaves a PSG1 behind. That rifle is then the best thing available for clearing the other rooftops and then the men on the ground before Niko goes down among them.
The staircase down has armour beside the door, and two more come up it as Niko goes down. Clear the rest of the Russians on the ground.
There is a pack of grenades near the vans themselves, which is enough to finish the job; a rocket launcher does it faster if one was brought.
Who this mission brings together, and the ground it covers.
Playable

A veteran of the Balkan wars who arrives in Liberty City on his cousin's promise of a mansion and finds a cab office and a debt. He stays because the man who sold out his unit is somewhere in the city.
All 90 missions · 2 as giver
Gives the job

The dying head of the Gambetti family, running the city's oldest organisation from a hospital bed and still able to make one useful introduction.
3 of 90 missions · 3 as giver