Hunter Killer

"Hunter Killer" is the second level of Call of Duty: Modern Warfare 3. August 17th 2016, the player takes on the role of Sgt. Derek "Frost" Westbrook, as he and his squad infiltrate a Russian Oscar II-class SSGN and launch the boat's cruise missiles against their own fleet. Later, the player and other team members make their escape from the submarine on Zodiac watercraft as the launched missiles begin to bombard the area, before escaping in a CH-46 Sea Knight.

Gameplay
The level begins with Frost, Sandman and their team of Deltas, swimming through the flooded, submerged Brooklyn Battery Tunnel and into New York Harbor. There they rendezvous with a team of SEALs and continue toward their objective. The depths of the harbor are filled with mines and the player is instructed to navigate around them using a mine imaging sonar device.

After successfully passing through the minefield, the team then plant charges on an enemy submarine. The charges detonate and the submarine is forced to surface, allowing the team to board. Frost and Sandman enter through the sub's access hatch and fight their way up to the bridge. The two of them breach the room, killing all the sailors within and their captain. From the bridge, Frost and Sandman are able to launch the Russian's missiles against their own fleet.

Frost and Sandman board Zodiac watercraft that the SEALs have put in place, and make their escape as the battle for New York Harbor rages around them. They are then extracted by a CH-46 Sea Knight and flown away from Manhattan.

Trivia

 * The Statue of Liberty is visible in the level.
 * In the submarine, on the bunk bed, there is a magazine called "Gossip and Lies", which has a picture of General Shepherd, titled "Shepherd in Trouble".
 * The screens inside the submarine control room are destructable.
 * The CH-46 Sea Knights at the end of the level are wrongfully labeled as "chinooks". When the pilot speaks it says "chinook pilot" and if the player drives towards the Sea Knight on the right, it will say something like "you have to get to your extraction chinook"