type /f tag (faction name) then ur good 100% unless another faction has that name, it does not have the faction plugin or both btw my name is nerdprince0 look up ropecraft its a nice server.
All of them
To answer a faction invite just do /f join <faction name>
add them to your faction with /f join <faction name>
You use /f leave [faction name]
To invite someone to your faction in Minecraft, do /f invite <player name>. They then need to do /f join <faction name> to accept your invitation.
You will need to the faction plugin for bukkit once running then do in the chat /f create {name of faction here}
If it has factions installed, you type this in: /f create name Replace "name" with what you want your faction to be called.
To view the power of another faction on a minecraft server, you can do /f info <name of faction> hope this helped!
The Name of the faction on the cover art of New Vegas is the New California Republic, or the NCR.
Aurora
There are lots of good faction names out there. A good idea for coming up with a name would be to put a single word first, then adding something onto it. A good example would be "Fire". After that, you could add something like "Blazers". This would be known as "Fireblazers".