The Spanish edition of PSM3 Magazine has revealed that Grand Theft Auto: IV will have fifteen multiplayer modes. The online multiplayer will be accessible through Niko’s mobile phone in the single player where players can join up to fifteen other players.
The fifteen modes include:
Car Jack City
Bomb da Base
Bomb da Base II
Team Mafia Work
Cops N Crooks
All that is known about the game modes is that Hangman’s Noose is based on a single-player mission which has you protecting Mafia man Kenny Petrovic with up to four team mates. You protect him from the ambushing SWAT teams and your aim is to fight and protect your way to the destination.
No other details about the other game modes were announced but some are fairly obvious by their name.