WARHAMMER ARMIES BOOK:
Chaos Dwarfs FAQ
Q . Can you fire Chaos Dwarf blunderbusses if there is
a friendly unit in combat with an enemy in the zone of
fire?
A . No, only Skaven can shoot when there is a chance of
hitting their own units.
Q . How exactly do Chaos Dwarf blunderbusses work
with the stand & shoot charge reaction?
A . The rules are applied exactly as with any other unit.
If the chargers start within 12", then any models within
12" may be hit. If the chargers are outside 12", the
charging unit is stopped at maximum range as normal –
so in this case only the front rank of the charging unit
will be in the zone of fire.