Hi people. So I finished my
KDK army and now I'm about to begin my Steel Brethren one. For those of you who never heard about them, they're simply an Iron Warriors warband with an even easier colour scheme

.
So I'm wondering what
CSM units I should use to represent them (and I said
CSM, no
IG,
FW or expensive things like that).
Some people already told me to use the mark of Nurgle to represent them being more resistant than the average
CSM /
SM, but after that, how should I play them ?
Thanks for your suggestions.