Rapid Deployment Each time an Adeptus Astartes unit from your army disembarks from a Transport (excluding Fly) that made a Normal or Advance move this phase (excluding those that arrived from Strategic Reserves), that disembarked unit can
make a Normal move of up to D6", or a Normal move of up to D3+3" instead if that Transport is a Heavy Transport
(see below).
Adeptus Astartes Transport units from your army (excluding FLY) that have a Wounds characteristic of 14+ have the Heavy Transport keyword.