Also, I just did a look over the roster, and we've got three US Marine Force Recon/MARSOC types. 

I think it might be a fun idea to go ahead and figure out what other countries offer similar experience to the Marine Corps and maybe convert the characters over to these nations. I notice no Germans, South Africans, Cubans, Colombians, Brits (Besides Collins), Australians, PRC Chinese, Poles, Finns, Nepalese or Thai.

So if people want to voluntarily convert from Marine to something else, that's cool. Also, I can give a heads up on some of these nations and their capabilities. There are a number of good naval commando/marine infantry units to choose from in other nations, notably the British Special Boat Service who are both insane and awesome as hell.