They're breeds of dogs, not representing any kind of rank at all. It might be a little confusing to other users and hard to memorize, unlike Alpha, Beta, Gamma, and Omega. I know OOB might want to be different, but maybe if you want more variety, look up Greek letters and symbols to make new ranks? Dog breeds don't show rank, so it doesn't make much sense.
Since I can't post external links for seven days (that, too, should be fixed), I'll post the partial link to the Wiki I found.
en.wikipedia.org/wiki/Greek_letters_used_in_mathematics,_science,_and_engineering
Since I can't post external links for seven days (that, too, should be fixed), I'll post the partial link to the Wiki I found.
en.wikipedia.org/wiki/Greek_letters_used_in_mathematics,_science,_and_engineering