The Coast Guard Launch is a boat in Grand Theft Auto: Chinatown Wars.
The Coast Guard Launch is a law enforcement watercraft with a rotatable mounted gun that can be fired by the player. The Coast Guard Launch will come after the player if they are on water and have a 2+ wanted level, similar to the Predator in earlier games. The police will fire the Launch's gun at the player. The speed of the gun changes depending on wanted level, the higher the wanted level, the faster the police fire the gun.
Speed and handling are terrible. Acceleration is mild and, being a combat boat, it has very good armour.