In some pickup games at my LGS, I played some games with these guys.
It is a good method to get troops up the board somewhat quickly. My list was pretty thin at 8 activations, 2 Transports, a Flamm Luther and a Wotan plus some various. but with 4 walkers bearing down on the opponent, it stressed him out. With a formation that is hell bent on getting next to the enemy, its great. You can use them to overrun a target, placing suppression down. Pop out zombies. When the Zombies attack the enemy that is suppressed right on top of em, the only reactions are CC reactions. Its a great 1 2 punch.
They are DC6 which is nice and put out 9 dice versus Type 2 in the front arc..
Really, they are great for the Hades campaign and casualties. The casualty role is made when a unit has lost a model. The transport helps get units to the battle without casualties and packing a DC of 6, is not as easy to kill as other type 4s.