Just off the top of my head (I was going to do a full preview as soon as I get the Bernie units) here is what their names are, I'll come back and put their stats and stuff later because I'm working on some modules ATM.
Mexico:
UU - Villista, replaces Cavalry
UB - Zocalo, replaces Colosseum (I THINK)
Argentina:
UU - Granadero a Caballo (mounted grenadier), replaces Cavalry
UB - Logia de Independencia, replaces courthouse (I THINK)
Brazil:
UU - Bandeirante, replaces Musketman
UB - Dance Club, replaces Broadcast Tower
Cuba:
UU - Mambise, replaces cavalry
UB - Casino, replaces Theatre
Gran Colombia:
UU - Libertador, replaces Cuirassier
UB - I forget what its called but it replaces courthouse
Canada:
UU - Canada Corps/Expeditionary Force, replaces Infantry
UB - Microwave Tower, replaces broadcast tower
I know there is some overlap here, but its important to understand that I wanted to UUs to be accurate rather than different, same with the UBs. Further since these are modules that you can add and remove at will from my mod you should think of them in the context of the civs I have in the mod as well as the first module pack and the upcoming module pack with Congo, Songhai, Iran, Minoans, Vietnamese and Australians. What I am going to do, once I finish the modules for the Americas was do a full preview and see if I should change anything, so none of this is written in stone although its a good indicator of what the final product will be.