The official reply from Mr Borg was given to us by KDuke:
kduke wrote: Richard Borg has confirmed his exchange with Brady.
[q]> 1. Will an attacking infantry unit in square "bounce" an adjacent defending enemy cavalry unit if it rolls a flag on its one die against in melee?[/q]
(RB) The Bounce Flag rule on page 16 states:
When the infantry unit in square rolls a flag against a cavalry unit, it will force the cavalry unit to bounce away from the square.
The rule as written, does not depend on which player is taking his turn. Therefore any melee combat that an infantry unit in square rolls a flag against a cavalry unit, the cavalry unit must retreat. We used the term Bounce Flag so players could better identify flags that infantry in square roll against cavalry, play a little different.
The example on page 17 - Example of Attacking an Infantry Square - repeats three times the fact that when an infantry unit rolls a flag against a cavalry unit the cavalry unit must retreat. All flags rolled in melee by an infantry unit in square against an enemy cavalry unit are considered Bounce Flags.
[q]> 2a. May an ordered infantry square take part in a combined arms attack with friendly artillery?[/q]
(RB) The Combined Arms Combat rule on page 18 states:
When an ordered infantry or cavalry unit is about to attack an enemy unit in melee, one or more ordered artillery units may combined their battle dice with the attacking unit.
An infantry unit in square can use the Combined Arms Combat rule.
[q]> 2b. If so, how is a combined arms attack with an attacking infantry unit in square resolved?[/q]
(RB) The artillery's battle dice are added to the infantry in square battle die. All the dice are rolled together. When the combined arms dice are rolled, sabers will score a hit even though the artillery unit is not in melee. In addition all flags rolled against the cavalry are considered Bounce Flags (flags that cannot be ignored).