Ok, here is my idea for use of Artillery-
It would take perks, Gv of course, to be able to use the Artillery. Maybe have this Artillery only available at Vehicle Bases and say Med Airfields. Lets say that we just average out from the many different calibre's of Artillery of WW2 and use a battery of 6 155mm guns. Now, lets say for 25 Perks you can access the Artillery Battery at said base, and along with a Spotter Jeep use this for GV assaults on town. You choose to blow your perks on this Artillery battery option, and have a limited amount of RPG (Rounds Per Gun) with the option of WP Rounds for TRP and then HE follow up for you fire for effect mission. It would be kinda the same as the W mode on the CV guns before they were changed. So, Lets say you ppick your point on town and fire your WP shells foor a TRP. The Spotter Jeep then relays corrections i.e. drop 200, add 50 etc. after a second salvo of WP that Spotter Jeep confirms is on target, the fire for effect order can be given at which point the Battery fires (can be salvoed I suppose) and Spotter calls out that they are on target or corrects for remaining ammunition.
I like the idea of a "Spotter" such as a jeep with instead of a .50, maybe a telescopic type rangefinder mounted on it. He then coordinates with the FCO back at base.
Maybe the ex Army in me is goin to in depth with this but I like the idea. Thoughts?