The differences were the larger font, and the inclusion of the Hell's Corner Map and the 5 scenarios HC01-HC05, (No CG). Also the counters for the USMC Raiders, Paras and associated Officer counters for Hell's Corner.
As I posted in the CSW Blog, If any errors are noted in the Nationalities File, leave a note.
I have found a few (<5, mainly quantities or lettering). I will be revising the file with a new MMP release (soon to be Sword and Fire.)