I’m obviously well out of the loop!
Never heard of a Sbach Breitling wing walkers, don’t know what an MTO 3 is, and had no idea there was an active DH-2 again!
I assume that it is G-BVFH, ex Thorpe Park, Russavia, Maurice Kirk etc. I was lucky enough to fly in it in the mid 80s when it was pretending to be a Gunbus!