Another 4th Ed. smoke/illum question

[Blackcloud6]

If a an artillery unit firing smoke or illum fails the placement roll is the ammunition still considered expended?  is the unit considered to have fired for the turn?

[J6A]

The latter is covered in the 1st paragraph of the rule "A unit or off-board artillery increment firing smoke or illumination may not also conduct Bombardment or Direct Fire in the same turn..." The latter isn't addressed directly, and I'd say yes, it's expended.

[Blackcloud6]

Another one for the annotated rules.