[RERomine]

It has been discussed before, at least on the WinSPWW2 forum. For onboard artillery, a cloud of smoke forms over the firing artillery unit. This smoke cloud allows you to pin point any artillery on the board or at least where it fired from in case it moved. Consider the smoke to be a representation of smoke, dust, sound, flashes, etc. that shows were the firing unit is located. By watching the screen, you can see what rounds are coming from where to figure what is actually firing and if you wait long enough, you will probably even have some show up on the screen as spotted.

That's pretty much the best you are going to get, but it seems good enough. The biggest question, at least in PBEM games is, will the guns still be there by the time you get counter battery fire to come in. The AI doesn't really move artillery.