Diver Propulsion Vehicle

The Diver Propulsion Vehicle (DPV) is an underwater form of transport featured in Call of Duty: Modern Warfare 3. It is a vehicle where the user grips onto the handles which can be turned forward to accelerate and vice versa. It's radar can detect friendlies with green dots, enemies with red dots and mines with a curved red line around the radar.

Call of Duty: Modern Warfare 3
It is featured in the mission "Hunter Killer" where Frost, Sandman, Grinch and Truck use it to swim through Brooklyn Battery Tunnel in New York. They pass through the tunnel and into an open seafloor laden with mines. After they maneuver through this obstacle they reach their objective, a submarine with the capability to level the entire Eastern seaboard. They plant mines on the sub's propellers to force it to surface, they follow it up into the surface, abandon their vehicles and engage the sub.