B71.
The US Navy uses the MH-60S not the MH-60R for Vertrep and other stuff running around the fleet. The aircraft is a hybrid using the R cockpit etc and a a M model fuselage. Good enough for Uncle Sam, good enough for us.
One problem put to me by the Navy with the MRH90 was the comms and a few other things that aren't compatible with all fleet ops. Ah well those in the ivory towers know best....