What are the different Races use for in the game?

[osirragkingXD]

I am returning to an old project of mine and realized that I am going to have to use one of the race slots already used. I know that Race one and Race two aren't used except by other moders. I need to know what they are all used for so that i can decided on which one will be easiest to change for my use. I don't want to use any of these:

Argon, Terran, Boron, Teladi, ATF, Split, Paranid, Yaki, Xenon, Khaak, Pirate, Player, Goner(well maybe the Goner).

the ones I really want to know how the game uses them are:

Unknown, Enemy, Neutral, Friendly.


thanks in advance