When I went through Navigator training at Mather we had enlisted Marine Navs going through too. Their syllabus was close to ours flying wise (Celestial, radar, oceanic, etc.) except they added air-to0air refueling navigation (what that entailed I have no idea. but it can't be much) and cargo drop navigation (where to drop to hit the LZ). Where we were going to the RAG for more training after Mather they were basically going straight to C-130 units. Mather was Marine Navigator advanced training and RAG in one.
Marines also had to put up with all the Marine military bullshit like formations, inspections, etc. that Marines love. Not boot camp but very regimented time 24/7.