When the MV-22 pipeline first came out 10 years ago I believe Marines did full C-12 advanced and then full TH-57 advanced... Something about them having more experience before they crashed another one of the things, at the time. Somewhere along the line, someone who could count realized it took their guys/girls just short of forever to get winged, and it was pretty expensive, so they came up with a bastardized intermediate/advanced pipeline, that's shorter than both full syllabus. I'm not 100% sure if they're allowed to use T-44C But I think they are because everyone else does because of the glass cockpit.
I haven't bothered to ask in about 4Years so I'd wait for a Yut, or someone who actually cares to do the research on the current info answer the question to come along for a better idea of what the training pipeline entails today.