Same here, played with 2 experienced players and 1 inexperience Marine player like 6 years ago and the USMC won at the start of the second CG date, with the Japanes conceding at CVP 301-239. I would not know if that would be high compared to other CG III games after a good day of fighting...We used the IIFT for our BRT CG III, and I was able to score a strong victory with the USMC. For every improved Japanese MTR, the USMC had more effective FG FP.
Again, picking at non-debated snippets of Fire Table math which actually end up hitting both sides in the end is not proof significant balance change is taking place.
Seems like there is somewhat of an advantage for the Marines (7-5 on ROAR) and the IIFT not making much of a difference, not particulary balancing it for the Japanese in any case...