Ok, so you may remember this and this.
Here they are with a little colour.
The Troop Command Squad.
The Commissar. Tough gig. Ex stormtrooper, commissioned as a commissar then pulls a Death Korps regiment instead of a Cadian or Valhallan one. And then when he gets there, he's put on a horse. Happy days.
Section 1, Ridemaster plus nine.
Section 2, Ridemaster plus nine.
Section 3, Ridemaster plus nine.
So, as far as the DKK go, only the Hydrae and Salamanders to go.