A Hard point is a point on the outer hull of a warship where another vessel may dock and link systems. These points can be used to combine engine power, telemetry, stabilize, and link computer or AI systems.
Newer UNSC warships have these hard points on their dorsal and ventral sides, in the event the ship is too crippled to move under its own power. Another UNSC vessel could then use its own hard points to dock with the wounded ship, link systems, and carry it away (presumably to a repair platform or safe zone).
- Cortana used the captured Covenant Flagship Ascendant Justice to dock with the disabled and abandoned UNSC Gettysburg. Since Covenant and UNSC systems are incompatible, Cortana used the Gettysburg's service drones and the Ascendant Justice's Engineers to adapt their power uplinks.