[chuckfourth]

Hi Blitzkreig
As far as I know the German and British armies are very specific in the allocation of divisional artillery. You rank(ie formation size) determines how much of the divisional artillery you will have at your disposal. The limit is one artillery battalion for one infantry/armoured battalion if you want more you will have to resort to your formations organic artillery. The one army I believe that doesnt abide by these limits is the US army. For the organic artillery within a formation a coy will have the coy mortars and the regiment will have the regimental "infantry gun" company. Because of command and control constraints one regiment is very unlikely to use another regiments IGs, one coy is very unlikely to use another coys mortars etc.
So assuming a 3 coy/bat 3 bat per regiment formation, in a regimental attack you will have all the divisions guns available plus your regiments IGs plus 9 sets of coy mortars.
For a coy attack you will have your coys mortars and possibly the regimental guns
For a battalion attack 3 mortar coys, regimemtal guns and 1 divisional artillery battalion.
Corps level artillery is usually busy with counterbattery, long range sniping or interdiction. though as you mention it can appear in assaults on either side.
I agree that it would be nice if some of these constraints could be worked into the game
Best Regards Chuck.