Core · Unit · Rules

An Aircraft transporting Rapid Insertion Units which have not Embarked this Round may move up to an additional X" after all other modifiers are applied before these Units Disembark. The Aircraft cannot move further than its unmodified Mv using this rule. Units with Rapid Insertion may Disembark when their Transport is within 3” of an enemy Vehicle.

Source: Dropzone Commander Rulebook 3.02 · 3.02 · p. 46 · unit-special-rules