Now, for your reading pleasure

[Huib Versloot]

Limitations of the game engine. All you can do is try to work around them.
Scenario designers should think twice before implementing a visibility >10 (although I do it sometimes). Long visibiltiy has the serious drawback that all sorts of units that are miles away from eachother serve as spotters for eachother.

In the PzC series the target has to be spotted by a unit attached to the artillery (in a broad sense) to be able to fire on it with that artillery.

I don't know if that is programmable in CS.

Huib