wow i dont know whats up with my internet, i posted taht last comment at like 6 this morning but aparently they got it around 8, hmmm.
armor i believe is jsut a base modifyer taht takes a certain persantage of damage types off, and the damage types are just set by the person making the mod.
as to the basic frunctions, well youll need someone whos done more with the game then me to tell you that, adn for a list, i think theres a forum that has a massive list of modding resources that will probably have what you want in it.
And as to gundams being game changers, yes 1 gundam can make a major difference in a match, but theres very few gundams you can have in a match, and they can only really be game changing after they've been upgraded, adn that can take a while, otherwise they're just particularly powerful units that are extrememly weak against torpedo frigates and missile turrets. however thats basing it off of fighting zaft itself and the higarans and vaygr wiht the current version of the mod, if the other team had gundams and the powerful ships that zaft does but not the same ones as zaft, it might turn out a little different