[Weasel]

You can Z fire into unseen hexes, at the Blitz we call it GOD MODE firing, where the AI has shown an enemy unit but you don't have anyone who can see it. You can, sometimes, fire into that hex. This GOD MODE is the exact reason Z fire has so many restrictions in the optional game rules I posted under mods.

Also, I didn't know Z fire used 2x ammo, that is interesting, but I kind of agree that Z firing units are hosing down an area with rapid fire, maybe it should be increased? Thanks for that info DRG, didn't know that. I take it that increase in ammo use also applies to artillery firing Z fire over open sights?