[BadCompany]

I've always used Z as a suppression tool. I thought the inaccuracy of the Z fire was to represent the fact that for example you may be taking fire from those woods, but you don't know exactly where those units are(The enemy haven't been directly spotted yet), so the the gunner "sprays" fire into the woods to return fire and suppress the enemy. This is why I never thought much about Z fire's inaccuracy even at close ranges, because it represented "spraying" when the exact enemy location is unknown so you can suppress them and buy time to get your units back into a better position.