This type of map is Last Stand. You are on a boat that's traveling through a cave. The idea is to stay on the boat and stay alive. The timer is set for 2 minutes and 30 seconds. At the last minute, the boat comes out into a Snowstorm. The Snowstorm gets stronger over time.

Jackie553145 Not exactly. It's like Typhoon but without the rising water and missiles and with a huge boat and Snowstorms and caves.