In 2014, Solid Snake and Otacon, wanted by the government, worked, lived, and raised Sunny on board. The plane also carried a helicopter compacted within the cargo hold, that Otacon piloted on missions.
It was on board the aircraft where Otacon created most of his later inventions, such as OctoCamo, and Metal Gear Mk. II./Metal Gear Mk.III The Nomad also carried three chickens, which provided eggs for Sunny, named "Solid," "Liquid" and "Solidus." It also forbade smoking, although Solid Snake often ignored that policy, resulting in Sunny, as soon as she discovers that he is smoking, telling him off (one time even taking away the cigarette and disposing of it before he got the chance to smoke it) and reminding him that there is no smoking aboard the Nomad. It also contained a weapons rack, which included the Operator, Mk. 2, a DSR-1, and an AK-102.
Behind the scenes
Based on the cutscenes in Metal Gear Solid 4: Guns of the Patriots, the Nomad appears to be a cross between the American C-17 Globemaster III and Russian Antonov AN-225 transport planes. It possesses a tail and drooping wings similar to the AN-225, whilst the overall body and four engine design are identical to the C-17.
Two nameless pilots are present in the cockpit, and they can be seen during the beginning of the Solid Sun mission briefing.
During mission briefings, the player is given the option to explore the Nomad using Metal Gear Mk. II. One can use this to find extra ammo, batteries, iPod songs and the digital camera. Bumping into certain characters will also give Snake different facial disguises if he happens to be in possession of FaceCamo.
Other than the epilogue, the Nomad was never actually shown landing in the cutscenes, although it was nonetheless implied to have done so in Act 2 and Act 3. The novelization by Project Itoh, however, does detail the landing in South America.