The MV-22 has also been in service with USMC HMX-1 - the Presidential / VIP transport unit - since 2013.
HMX-1 is getting way more V-22s than UK SF could aspire to (qty 12 so far).
https://www.youtube.com/watch?v=5Xcj...&nohtml5=False
https://www.youtube.com/watch?v=ROJwL2suUMI