I don't even know how to pronounce it as it was written down, but the first type of troops found with the Adeptus Mechanicus are hyspasists. Syphon 19:01, 10 June 2010 (UTC)
There's a misunderstanding over here: What is treated as Praetorians is actually two different units.
There are Praetorian Battle-Servitors (heavily armoured, capable of wielding two heavy weapons at once). Sources: Mechanicum Part2 Chapter1, Dark Heresy Inquisitor's Handbook p.141
And there are Praetorians (heavily armoured, fast, rifle-for-arm + energy-weapon), the Skitarii-counterpart to Space Marines. Source: Fallen Angels Chapters 9,11,17
--DetlefK 19:22, 20 October 2012 (CEST)