Carrier is a survival horror video game for the Dreamcast, notable in part for being fully 3D - then still a rarity for survival horror games, which mostly displayed 3D characters over pre-rendered backgrounds. In Carrier, players assume the separate roles of an investigation team that was split up from a surprise attack.
With the Heimdal as the US Navy's largest nuclear powered aircraft carrier ever constructed and capable of launching a barrage of ballistic missiles, the carrier soon demonstrated its power on a mission called Operation Hurricane. Three Special Forces divisions were placed on the Heimdal to carry out an attack on a Southern Cross base as well as to pick up an ancient organism said to have been located somewhere in the South Pacific. The next day after the transportation of the organism, sabotage struck the engine room, though the Heimdal could still make its course back to American shores. Two days afterward, the Heimdal exhibited a period of radio silence, yet the ship was still heading for shore through the Pacific.
It's here that an NTA investigation team known as SPARC is sent to enter the Heimdal and discover what caused the radio silence. The first team that was originally sent in landed and entered the ship safely, but were quickly silenced; a second team was sent in afterwards, hopefully to assist the previous team. When the team's helicopter starts to land on the Heimdal, the Heimdal's guns automatically lock-on to the chopper and shoot it down, separating the team aboard the Heimdal.
It's from here that very odd but dangerous mutants attack the main characters in their search for the truth.
Source: Wikipedia, "Carrier (video game)," available under the CC-BY-SA License.