This is the only thing I can find in the book that isn't addressed 100%.
Spray weapon icon for this discussion = *
Spray weapon description says a */1 weapon is 1 dice per model in the unit just like Tactics. It also states that a */2 is 2 dice per model, etc. it doesn't describe the napalm thrower and Chef's flamers, which are **/1. Now, Tactics logic would be that you could target two different units that are in range of the flamers, but Warfare is not specific from what I can see. I'm actually discussing this point with Andy Chambers over on the Facebook group. What's the opinion of you all on how it's handled?