Arcoflagellants, chronogladiators and other cyberwarriors. They are the psycho warriors and expendable ‘muscle’ in any warband. Three figures were officially released – Damien 1427, Simeon 38X, and Krieger Krash Thrax.
There is also an unofficial arcoflagellant that was made by a member of the conclave (Thantos). This fan-sculpt is professionally cast and the quality is superb.
There are also a few figures from other ranges that make good cyberwarriors – such as the Mutant by Tue Kae and Mongo by Dark Age miniatures
Finally, it is fun to kitbash cyberwarriors using bits from the standard 40k range. I acquired a few from a member of the conclave.
Addendum. A recent conversion i painted up