Posting It here since there are currently some problems with the workshop and I can't edit the Mod's description.

-Clipping between the shaman's head and some part of the marauders' bodies/armours, in particular with the Champion units.
Nothing tragic but visual perfectionists could be easily offended by this so I'm telling you anyway.
-Shaman heads were NOT supposed to be attached to Marauder bodies.
That means the following:
1) Their size Is not proportioned to their bodies, this result in kinda small heads.
2) Neck models are (usually) tied with head models, that means that torso models usually don't have necks by themselves.
In our case we have the following problem: by not having the Marauder heads (and thus necks) we have to rely on the Shaman heads and necks.
And since the Shaman heads were not supposed to be attached to Marauder bodies we have clipping.
That means that part of the Shaman's head, including the neck, clip with the Marauder's body resulting partially invisible.
And that was the untold tragedy of the wolfy ones, living a life of endless rage from a messy Chaos God's blessing regarding their heads.
*Now you know*

But with all due seriousness: I think that It should, at least in theory, be fixable with H3ro's Asset Editor.
But you probably already guess It by now: I don't have the slightest idea of how that program works.
I already tried It a bunch of times but with no success since It just refuse to open any model files at all.
Since other modders are using that tool with amazing results I can only speculate that there Is a problem regarding my rig or that I'm doing something wrong.
The lack of in-depth tutorials and guides about this particular tool doesn't help either.

If you are still fine with using these units even with the aforementioned visual problems...well thank you for your understanding!
Welcome to the no-neck Heresy!