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
11of 90
Mission 11 of 90Story mission
Vlad Glebov runs his end of the Faustin operation out of Comrades Bar and treats Niko as hired muscle from the first sentence. The job is debt collection at its most basic: a shopkeeper is behind, and the shopkeeper needs to understand that being behind has consequences.
Nobody in it is armed and nothing shoots back. Vlad offers Niko a baseball bat on the way out and Niko declines it.
The owner refuses to pay when asked, which is what starts the second objective.
The object the mission wants is a brick, and it is marked on the radar rather than left to be found. Collect it and come back.
One throw settles it and the owner pays. Nothing in the mission is hostile at any point, so the money can be carried back to Comrades without hurry.
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 loan shark working out of a Hove Beach bar who holds Roman's debt and mistakes Niko for somebody who will tolerate him.
7 of 90 missions · 4 as giver