Nato SpecOps units Helo transport?

[warhero88]

I'm playing a solo WW3 Danube scenario that features several NATO Special ops/Deception units (Seals, SAS, etc). Each unit with men has relatively low movement points (33) and starts the scenario stacked with a 6 "vehicle" helicopter unit. The implication is the helicopter unit can transport the SpecOps units to insert them over long distances. Does anybody know how the mechanic of loading a spec ops unit onto its separate but corresponding helo unit works?
Below is a screenshot showing an example: a West German Spec Ops unit stacked with its corresponding 6 Vehicle Helo unit.

Screenshot (422).png