Ok, I need a collaborative decision on something. I'm going through IA:Vraks and implementing The Purge detachment. In it, it states any model equipped with a Flamer or Heavy Flamer may upgrade it to a Chemical Flamer for no cost.
Would that also affect Combi-Flamers?
BRB states "A model armed with a combi-weapon can choose to f ire either the main boltgun, or the secondary weapon." That would mean it's equipped with both a Boltgun and a one use Flamer/Melta/Plasma.
RAW: Any friendly unit in the army equipped with flamers or heavy flamers may be upgraded to be equipped with chemical flamers for free, and any model equipped with a missile launcher may take chemical rockets as a free upgrade.