New to Panzer Campaigns, have many questions... Let's start with HQ's

[MisterMark]

Picked up Salerno 43 several months ago and have been playing quite a bit.  I've read through the manual/help guide and reference it whenever I'm in question but still having a hard time getting my head around some of it.  In the few months I've been playing I've amassed a small list of questions that I think can be better answered by the experience players here.

I'll try not to overwhelm the forums with all my questions all at once, so I'll start with just a few:

It would seem enemy HQ's would be high priority targets, however the manual says if an HQ is eliminated it has some random chance of 'recovering'.

If that is the case would it be better to attack them to the point of being disrupted?  Or better yet, grind them down to the point of being broken and leaving them pinned in and possibly isolated?  If only disrupted (and assuming subordinate units are withing it's command range) what is the negative impact on it's subordinate units?  If broken and possibly isolated, would they offer any benefit or advantage to their subordinates?  Or would an HQ in such a situation be completely useless to it's subordinates as if it were completely eliminated?

Also if faced with the opportunity to attack/disrupt/break/isolate two different HQ's with one being say a divisional HQ and the other one being a subordinate HQ, which one would be better in the short run?  I would assume over the long run, knocking down a higher level HQ would provide more benefits but what if you are trying to stunt an immediate attack from several battalions?  Is it better to take aim at the more direct level battalion HQ for those particular battalions or the higher level HQ above that battalion HQ?  In either case what are the overall negative effects for the enemy?

Finally, with HQ's that has 'recovered'... the manual says they will initially be disrupted and not be able to perform their command duties on the subsequent turn.  But where do HQ's that have 'recovered' respawn?  Do they respawn at a supply zone?  Or do they respawn into a location more central to their subordinate units?  What if it's subordinate units are deep into enemy territory and possibly even surrounded and isolated?  What then?

Thanks,

-Mark