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
23of 90
Mission 23 of 90Story mission
Dimitri's payment turns out to be an ambush. The meeting at a warehouse in East Hook is set up to hand Niko to Ray Bulgarin, the trafficker whose ship Niko jumped in Europe, and Little Jacob is the only reason Niko walks out of it.
It is the mission that ends the Broker act: the deal is off, Dimitri is an enemy, and the police arrive before the shooting stops.
The ambush begins the moment Niko is inside. There is no time limit on it, so it can be worked through from cover rather than rushed, and a Micro-SMG is quicker through it than a pistol.
A first aid kit and body armour are both inside the warehouse, and the men who go down leave weapons worth picking up before the police arrive.
There are officers waiting when Niko comes out, and the wanted level is two stars.
Clear the search radius first — the cafe drop in Dukes cannot be made with the stars up.
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

Mikhail Faustin's lieutenant, and much the more dangerous of the two because he is patient. Every arrangement he makes with Niko is a position he is preparing to sell.
12 of 90 missions · 2 as giver