I don't think that the ARTY model is broken in any way, it seems to perform pretty much as it has always has (see my post "NOT FEARING SOVIET ARTY") .
If any thing there are however some niggles that perhaps need attention , e.g AI ARTY displacements being significantly faster than one ordered by the player.
I am somewhat surprised by SEARY's comment "The Soviets always seem to kill me with artillery while I melt their tanks." I've just played one of the REFORGED SCENARIO'S BREAD AND BUTTER.
TANK KILLS BY US TANK BATTALION (TF 1-68) = 1, NON TANK KILLS = 187
TANK KILLS BY US ARTILLERY = 33 , NON TANK KILLS = 216
Of the the 20 TANKS lost by the US , 12 were as a result of fire from the Soviet T80U Battalion.
Engagement ranges were 3000m or so, I found that the deployed US tanks chose to fire at targets past the T80U's, which were in the 3000m range.
The biggest killer was the MLRS battery , which I used exclusively to fire saturation bombardments, which inflicted 18 Tank and 92 non tank kills.
Had I not been able to make the decisions as to where my Artillery fired then I would have suffered the same defeat that I suffered in the the a few good tanks scenario, where my us tanks only shot at the T80'S when there was none else to shoot at.
I have found that Arty is the Battle winner and feel seriously handicapped if I don't have any to conceal my troops with smoke, separate the soviet recon forces from their main force by laying a minefield at a crucial choke point , and wearing down their tanks units readiness, or eliminating air defense.
I never bother firing at enemy HQ's , they are too big to eliminate easily, and thier loss doesn't seem to effect Soviet plans significantly enough , their HQ's wont kill my troops but thier tanks sure as hell will.
AI use of Arty i have found is somewhat patchy, I'v had some big losses , but occasionally I have thought that they don't do enough preparatory bombardment, the scenarios are generally 8 hours or so but are often over in two or three hours, cos the Soviets go at it hammer and tongs from the word go, if the A1 hung back a bit with the main force , let their RECON do their stuff and then pound away with the artillery, I'D really struggle.
As an aside , how does a unit know if it has been spotted ? I can see you, but how do i know you have seen me until 152mm shells start landing on me ?
Nothing wrong with the Arty model as far as I can see.