No, I don't think we have a specified set for the welsh rebels. The rebels are all the same faction, I think, and making them all speak different languages would be a tremendous lot of work (not just regarding sounds, but a recoding of the factions as well). I like the sound of your translations though.
I meant the French samples that come with Xenophonia, btw. They should be written down before they are translated, to make translation easier and more easily reviewed. This is what we've done with all the other languages, too. Look:
http://home.student.uu.se/dahe9761/xenophonia/msd