The Bgtzl without vowel topics sparked this. Basically, it's taking all the unusual names and words associated with Legion and shifting all their letters the same amount of spaces along the alphabet.
For convenience when your trying out the words, you may want to type an alphabet in your message space so you keep it all straight!
ABCDEFGHIJKLMNOPQRSTUVWXYZ
BGTZL - shifted 1 letter forward - CHUAM
BGTZL - shifted 7 letters forward - INAGS
COLU - shifted 3 letters forward - FROX
COLU - shifted 6 letters back - WIFO
COLU - shifted 6 letters forward - IURA
DURLA - shifted 3 letters back - AROIX
Just a little start in case anybody wants to play around the possibilities