[quote=@Jbcool]
There is no regiment cobbled together to form a spearhead, methinks you are mistaking/misreading things, mein freund.

Also, there are any number of composite/mixed regiments in the Guard, if every one of them had an Acolyte to watch over them it would be a vast waste of resources.
[/quote]

I think I may have misinterpreted 'decimated' and all that.

I can think of all sorts of reasons why an acolyte might be assigned to a regiment, either from the Ordo Xenos  or the Militarum. Not to say every regiment has one, but that 'ours' could. But, I'm not going to try and force a character you don't want :) Simples.

Now to write a character.