This airdrop appears to show pallets being gravity extracted and their recovery parachutes being released by static line. On C-17 this would be the "Dual Row Airdrop System" which has a capacity of 10,000 lb per pallet and up to 18 pallets or a little over 80 tonnes. For some reason the RAF chose not to train their C-17 crews for this capability which is already paid for and included in their C-17s. The question now is will the RAF fund training for its Atlas crews to do this mission after spending big bucks to develop the capability and (presumably) installing it on their A400s.
Separately, what is the cost of adding this system to A400? Will the RAF fund all their A400s to receive this system? And since a very similar system is already installed and paid for on the RAF's C-17s, will the RAF start training its C-17 crews for this mission?