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
68of 90
Mission 68 of 90Story mission
Isaac Roth is in the penthouse of the Majestic Hotel with the diamond dealers, and Ray wants all of them dead. It is a vertical assault with roughly twenty-five men in it, and it offers a genuine choice of route: up through the hotel, or up the outside of the building on the window cleaners' platform.
Backup is no use on either — a called-in crew will not get into the lift and cannot use the platform — so this is a solo job whichever way it is done.
The lift takes Niko to the thirtieth floor and into the guarded corridors. The window-cleaning platform on the rear of the building goes up the outside instead, which skips most of them and lets Niko come in above the fight.
Take a shotgun before stepping into the lift — the hallways and stairwells are close work throughout. A grenade thrown into the first hallway saves a great deal of it, and there is an orange gas cylinder on the way up worth shooting rather than walking past.
One of the dealers is in the kitchen and can be killed or left. Neither answer affects the rest of the mission.
He is in the bedroom on the upper floor and dismisses a companion as Niko arrives, who is likewise optional. The room is small, which is what the shotgun was for.
The last dealer and a group of hired guns are above, clustered near a fuel tank — one shot into it does most of the work. Two stars follow, and the facade lift can be lowered to leave down the outside of the building rather than through the lobby the police are heading for.
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