"command vehicles" - or specifically labelled and identifiable "platoon/company" etc HQ units, as we have stated often enough on the forums for people to know our opinions by now, are a
seriously bad idea.
Since the SP series of games give you too much information (spot something and it is immediately labelled, ther eis no concept of partial spotting ("enemy tank" or "tiger!" for a Mk4

)), then this route is a sure way to have your opponent informed of precisely which units to kill first. It is like labelling these things with a great big "Kick me" sign!
The AI will know nothing about them, and use them as vehicles or foot elements of that class. A human player
may remember to hide them behind cover etc wherever possible.
So - specific command vehicles etc are generally, a
bad idea. They should only be used for e.g. FOO vehicles, or offered for humans only in the misc tab (as in some MBT OOBS with M577 etc), assuming they can lift an HQ element), as a species of utility vehicle or similar. Soviet-stle company and above commander tanks (all post WW2?) are not modelled, for this reason too.
There is a particularly bad example of this in the WW2 GE OOB - Ost company KpFue (sp) - which tells me that I have to execute one in my current Soviet LC, when I trip over one!

- we will need to edit the name of this unit to a generic ost type. No idea how that got through QA..
Cheers
Andy