Direct Fire with range exceeding 12

[cjsiam]

What does a 150mm IG gun fire?
It's not solid shot---it's HE....
So---sighting to target is an area question...you're not trying to hit That Particular Blade of Grass...You're trying to
get it into a specific area---
So a guy from the 150mmIG battery up in the tower using the +6visibility to guide the Direct Fire (over 15min there would be multiple shots)
makes all the sense in the world for that unit....

To me...
RAW works...