The Prince Yuletide holiday companion is probably is close as we'll get to an Armada companion. His moves are the exact same as an Armada Musketeer of any level. His attacks match that of the highest tier Armada Musketeer, in other words, an Armada Sniper. I hope this helps!
Even if you write a check of $1 million to Blind Mew or the other developers , it's never going to happen. Blind Mew's stance is adamant as a stone wall so the idea of having an Armada companion will remain a fantasy.
Which is a shame because I like to have a Battle Angel or Dragoon on my side.