The Old Hospital is based off the remains of the Smallpox Hospital in Roosevelt Island. In GTA IV this hospital is located in the south end of Colony Island. It consists of many destroyed walls and an open roof it is easily accesible from land or air. The hospital is used in a mission called The Snow Storm. In multiplayer, meaning Free Mode, the hospital can be used for SWAT Training, Tactical Entry Training, or Ambushing. Police oriented clans (or teams) on multiplayer often train recruits in this building for its tight corners, open rooms, careful advancements, and long hallways. The hospital can be entered by the open roof unlike other buildings which makes this building very unique to the others in Liberty City.