Grand Theft Auto IV: The Ballad of Gay Tony expanded on the multiplayer gameplay. The new features are only available to players that have the episodic content.
There are many brand new things in multiplayer:
- Deathmatch: Weapons, kill assists, locations
- Free Mode: Weapons, BASE jumping, vehicles
- Race/GTA Race: Nitrous, vehicles (including the APC in GTA Race!), tracks