While the channelers do act as FOs there is one small problem with that,
the Carronade, like all cannons, is Direct Fire only. You can not do spec fire with a Carronade.
as far as I can remember, other than a handfull of grenades and UBGLS, the DL doesn't have any indirect fire weapons. Which is probably a good things as half their troops are either dead and therefore dumber than a doorknob or immoral and as much a danger to their own forces as anyone elses.
-PFC joe