Editing Behemoth Guard (section)

===Recruitment and Initiation===
I'm not quite sure what they do with neophytes. Probably deal with them the way the Templars do--throw them in the squad. Recon is likely done through daemon oracles and scrying as opposed to traditional humint.
They do, however have fast out rider squads, in what amount to Salamanders and Bikes. I think they probably throw neophytes in here as a good way to learn on the go with some more experienced guys.
I think the legion ethos is decently friendly, if that makes any sense. Gengrat is a cold sociopath, but he loves his sons, takes pride in their accomplishments, they're as much his creations as are the abomination engines. The legion follows in suit.
Competition to be The First of a house or a Forge Tyrant is fierce, but in general, it's like Ferengi competition--cut throat, but not personal.
I think there is also an extent to which mentor and apprentice do not directly compete and if the apprentice does something great, it is to the glory of the mentor.
They're the Tzneetch legion, after all, and I think they deal with the plans and progress by enjoying the great game, the same way they genuinely enjoy weaponizing screams and tears.

Anyways, scouts and neophytes. Probably start off on a fast out rider rig. To be First of one of these is a big deal, too, since you get to train the neophytes.
Typically these are things like Salamander Squadrons, stripped down rhinos, or bikes. Anything fast. Particularly renowned ones may even have some Cybernetica hounds like vorax.
After a stint in one of the vehicle squadrons, the neophyte is sent someplace else based on what they prove adept at. Some work making bikes and become bikers, others join a heavier vehicle squadron, etc.
From there they're further specialized based on skills, with the big division being between the forge and the riders. Everyone does some sort of forge work, but after a stint in one of the main assault brigades, talented technoccultists are taken for further training, while the rest pursue different modes of Armored warfare, be it breaching and close assault or heavy weapons use.