See attached for Bullet Designer's Osprey (from this thread
LINK) with the ruleset reworked slightly to be workable in the stock campaign game, instead of only in the random battle generator.
You start out with an Osprey in your starting base instead of a Skyranger, and this mod also slightly modifies the Skyranger to be a very high subsonic transport (850 km/h vs 760 in the original), with much shorter range (400 fuel vs 1400 in the original).
Basically, the Osprey is about half as fast, but can go further (11,600~ km and 29.2 hours in the air versus 6,660~ km and 8.3 hours in the air) versus the Skyranger.
I originally intended for the Osprey to be a slow "loaded for bear" transport, with the full interior capacity of 20 men or 4 HWPs available, while the Skyranger would be a lightweight fast jet VTOL transport that was nearly supersonic (maybe 900~ km/h) allowing you to get places fast, but without HWPs, to all balance it out; but current bug on the map for the Osprey means HWPs can't exit the plane. Oh well.
Known Bugs Currently:
HWP's can be placed into the Osprey, but they can't exit the Osprey, due to I think a pathing error somewhere.