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
65of 90
Mission 65 of 90Story mission
Luca Silvestri and two associates have taken the diamonds for themselves, and Ray wants them back with a specific instruction attached: Luca stays alive long enough to say where they are.
The chase runs from Castle Garden City into Middle Park and ends, memorably, with a man hiding in a public toilet cubicle.
Luca dying before the toilets fails the mission. The two associates can be killed freely, so aim deliberately during the chase and the fight in the park rather than throwing explosives at the group.
He is behind one of the toilet doors and there is no way to tell which. Shoot the doors open until he turns up.
A pistol finishes him, and the diamonds have to be picked up from the scene before the meeting with Ray on the bridge in Middle Park.
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

A Pegorino family capo whose diamond deal drags Niko, Johnny and half of Liberty City into the same disaster from three directions.
10 of 90 missions · 7 as giver