The D-98 Osprey was an eight-engine, trans-atmospheric capable, vectored thrust dropship utilised to transport troops, vehicles and equipment between the surface of a planet and its orbit. The Osprey was introduced in 2615 as a replacement for the aging D-96 Albatross, and while being a modern, effective craft, had much the same roles and capabilities as the craft it replaced. The Osprey was largely used for non-combat roles, though possessed high speed and heavy armour to protect it from interception should it be threatened. The Osprey was operated by the UNSC Army, Marine Corps and Navy as a personnel and cargo transport.
An attack variant is planned but I haven't yet figured out how to make this practical/realistic.
Drawn in Inkscape. Design based on the alien dropship from District 9, Valkyrie Shuttle from Avatar, and Pelican dropship from Halo. Do not use without permission.