HT optional rule

[von Manstein]

1. Empty HT assault is non-zero only when other units are in attack, i.e. Adds to the assaulting unit prohibiting HT only assaults.
2. Empty HT cannot spot enemy units unless it attempts to enter a hex with the unit, limiting their usage as reckons
3. More detailed OppFire allowing to split tank and non tank hard targets, to avoid HTs usage as a bait.

1. and 2. BIG 'NO' (I think HT was armoured combat unit with MG)
3. VERY BIG 'YES' (HT is not a tank)