The original paperwork which I had that's been shredded, showed the formation of being, engine, brake force runners, barrier wagon 4x700, barrier wagon, brake force runners, barrier wagon, 4x700, barrier wagon, brake force runners, barrier wagon, 4x700, barrier wagon and finally the last brake force runners (27 vehicles long).
This was for the first few deliveries until the translator wagons were ready.
Now it's engine, brake force runner, translator wagons 12 or 8x 700, translator wagons and finally a brake force wagons.
But I did see at least one arrive as engine, translator wagon, 8x700 and translator wagon, which is how I read and understood the main part of the fleet was to be deceived, but I've seen others arrive since with brake force runners as well.