How do.
Another question which I've not found a straight answer to in the rules - though that is not to say it's not there, just I haven't found it.
Imperial Knights can make Super Heavy Walkers characters, and this of course means I can issue and accept challenges.
Now, so far so good.
When fighting in a challenge, any excess wounds caused are dished out to the poor saps unit.
Again, fairly straight forward to this point. Hurrah.
Except....lets say I assault a unit of Chaos Cultists. Their champion has to challenge, and being a single model, I can't actually refuse the challenge.
Stupid Cultist Champion, you go squish now..... Roll on the Strength D table....I can do a lot of wounds potentially.
Yet, that's wound multiplication on a single model. Sense would seem to suggest these don't carry over, but the additional hits would.
Quick example (don't have book to hand, so numbers approx.).
I score 4 hits on the Champion, and all four do wounds. The first hit and wounds is of course to remove his scabby little heretic head from the general vicinity of his shoulders, doing him in. Doesn't matter if I've rolled for multiple wounds - it's the base (emphasis mine) wounds that carry over, not the multiplied.
So this would mean three unfortunate Cultists also go squish, regardless of how many wounds those hits multiply into.
Then comes the Stomp.....
Cultist Champion is very, very, very ded. And I stomp at I1......
As the challenger has been squelched, do I then work out the Stomp against the unit, or do I forgoe it as essentially the unit I was in combat with (the Champion) is gone?