Thank you very much guys!

I have a small question about storyline for those who have finished the sith warrior story When we get the darth title, do we get a darth name? Darth VADER, Darth SIDIOUS, Darth BANE etc. I would like to name my character this name so that it is Darth (insert darth name here) I know inquisitors get darth names based on alignment? is it the same system for warriors with the same names or differant names? Thanks alot guys!